Kiyo is a junior high student who's a genius, yet repeatedly cuts his classes because he is literally smarter than most teachers in the school. Meanwhile, in a forest in England, Kiyo's archaeologist father discovers a Mamado child named Zatch, who has no memory of who he is or of his past. Kiyo's father sends Zatch to Kiyo as a sort of mentor. However, Kiyo doesn't take kindly to Zatch's efforts. The 14-year-old pulls a prank on the boy by saying he'll rescue Zatch from the schoolyard bully. Even as Zatch is pummeled by the bully, Zatch continues to stick up for Kiyo. Kiyo finally steps out from behind a door to aid Zatch, and basically gets his butt kicked. Then out of the blue, a skateboarder rides onto the roof with another kid like Zatch on his shoulder and, somehow, blows away the bully. Literally. The skateboarder, Eido, attempts to claim Susie, Zatch's newly-found friend and Kiyo's childhood friend, as his prize. Zatch and Kiyo are both overwhelmed by anger, and with the help o

Kiyo's mind keeps returning to his first battle with Zatch as he continuously fails to dicipher the Red Book. He is amazed at Zatch's abilities, though that gets thrown aside when Zatch displays his wide variety of backpack outfits. As he returns to school with the little momodo, the team finds a guy with a momodo of his own, this one with the power to freeze anything, stealing a car from a hapless victim. Kiyo ignores the crime, marveling at both the ""kid"" and Blue Book while the guy gets away. The crook turns back up at the bank to hold it up while Susie is there for a withdrawal. At the same time, Zatch shoots off his mouth about Kiyo at school, almost getting them into trouble again. Kiyo ignores it and walks away. Along the way home, they catch a news report in a store window about the hold up. Kiyo instantly becomes torn between helping Susie and leaving the authorities to handle it. With nagging from Zatch, he finally decides to help her and, with Zatch along for the ride, powe

As the episode begins, Kiyo is once again paging through Zatch's spellbook, attempting to puzzle out the second spell, Rashield. But he has little luck, and soon abandons the task. When Zatch announces that he'll be accompanying Kiyo to school, the teenager is alarmed and yells at Zatch in an attempt to keep the Mamado from following him. Zatch does not take this well, and demands to know what he's supposed to do by himself. Kiyo, ever the genius, quickly whips up a small cardboard doll called the Voltron 3000 to keep Zatch occupied while he slips out to school. Though Zatch adores the toy, he follows Kiyo anyway, bringing the Volcan 300 along for the ride. Kiyo is annoyed to discover that because of the bank incident that occured the previous day, everyone is convinced he's some kind of freakish hero and therefore everyone stares at him and whispers about him behind his back. The teenager is further irritated when Zatch pops up, despite Kiyo's efforts to keep the lightning Mamado at h

After finding Zatch showing off his powers, Kiyo abandoned Zatch. Zatch found a lost dog on a bridge. Then, a strange girl named Sherrie and her weird mamodo, Brago, came to Kiyo's house. When Zatch came home with his dog, he heard Kiyo, Brago, and Sherrie talking. When Zatch heard Sherrie said that if Kiyo keeps him, Kiyo will get hurt. When Zatch left, he saw a strange man in a cloak. When the man pulled out a book, and then the dog that Zatch found turned into a spiky monster.

After hearing Zatch scream, Kiyo ran downstairs, he paused and watched from the stairs. He runs down and pushes Zatch out of the way of an attack, which left a dent in the wall. Cheri asks Brago if it's another mamodo, already knowing the answer, he replies affirmative and asks what they should do. She tells him to let them beat each other up a bit. Downstairs, Zatch tells Kiyo that the dog is his friend; Kiyo tells Zatch that if it's so, he'd hate to see his enemies and sends a lightning attack at the charging monster after they cast another spell. When the man uses another spell, that sends sharp rocks out of the dogs back, Kiyo jumps in front of Zatch and takes the hit himself. Cheri decided to put an end to ‘these childish games' and intervened. Brago jumps down the stairs, landing directly in front the intruders with his palm out, ready. Cheri shouts the ‘Reis' spell, and the same ball that hit Kiyo knocked the dog out, turning it back to a puppy. Cheri tells the man to leave the

After the battle with Cheri and her dark Mamodo, Kiyo is sent to the hospital with a kid named Shuuta, who was to be released 6 monthes ago. Zatch tries to cheer Shuuta up, but is shunned and given his lunch. When Kiyo tries to cheer him up, Shuuta snaps and steals his red book while Kiyo gets some juice! Then he threatens to burn it! Will Kiyo find the book in time, or is it bye-bye Zatch Bell?

Zatch tries to make friends with the same kids from last time in the park, but was shunned and made fun of, being called a freak. One of them says she's going to the zoo with HER friends, Zatch doesn't have any...except Kiyo and Suzie! Kiyo ""offers"" to take them to the botanical gardens, only to find an old friend, Ivy, and a new enemy with a Mamodo, who've been training for the Mamodo fight. While Suzie is away, the Mamodo and his master use their powers on the trees and the people, including Ivy! Kiyo comes up with a plan to save the people and stop them, but will it be enough?

A female Mamodo appears in the city and instantly becomes friends with a girl named Lori, sort of like how Kiyo and Zatch met, except without the smashing windows. The Mamodos name's Kolulu and is very sweet and thinks of Lori as a big sister. Soon after Kolulu meets Zatch and instantly remembers him. Which is going to do; fighting her in her otherself or sending her back to the Mamodo World like the others from the past when she proves to be one of the few good Mamodos who refuses to fight?

Zatch and Kiyo learn a new spell and go out to a secluded area to try it out. However the spell does not succeed! Meanwhile a Jester-Like Momodo challenges Zatch and Kiyo to a battle, and thoroughly thrashes them. When Zakair and Rashield fail, only their last spell can save them! But can Kiyo and Zatch get it to work?

Zatch believes that he has found another kind mamodo, but when kiyo discovers he and his partner plan to destroy the city, will he and and zatch be forced to fight them?

Zacth and Kiyo encounter a shapeshifting mamodo, Kyanchome, and his partner, a singing sensation named Folgore! What is wrong with this picture, and why is everyone after Zatch?

Zatch and Kiyo just spent the day training.

Zatch and Kiyo are watching TV when they find out that the wind is stealing objects. They later discover that Hyde and Eido are back, and ready for a rematch. It isn't until Eido captures four of Kiyo's classmates that he has to fight. But when Eido and Hyde learn a second spell, can Zatch and Kiyo beat them?

Kiyo goes to a concert with Suzie, but a mamodo tries stop the concert ! Will Kiyo and Zatch stop them or will the concert be ruined?

Zatch and Tia work as a team to defeat a Mamodo named Maruss partner will Zatch and Tia defeat them stay tune

Kiyo comes home and finds a notice demanding that Kiyo and Zatch go to a warehouse in exchange for Suzy's life. Kiyo and Zatch arrive and meet the enemy Mamodo Robnos, and his book keeper and a battle ensues.

Summer Break has begun for Kiyo but he has to fulfill promises he made to people; the promise to help perfect an invisible pitch, catch 500 fish, hunt for a dinosaur, and helping create contact with aliens.

During summer vacation, Zatch and Kiyo arrive in London to see Kiyo's father, a college professor. Another purpose for this trip is to find out more about Zatch, who still can't remember how he arrived in the human world.

In England, Kiyo has his bag stolen. Zatch desperately chases down the culprit and captures him. The culprit's name is Kory. For some reason, Zatch and Kory become friends. The group then discovers that the dark lord has kidnapped his father.

Kiyo and Zatch have found out about Baltro's flowers. But before they know it, Folgore and Kanchome have been taken hostage! Steng, Baltro's human partner, tells them that to save Folgore and Kanchome they must hand over the Red Spell Book.

A party is being held to celebrate the village having been saved from the hands of the Steng and his mamodo Baltro. During the party, Kiyo fills his father in on the situation to date.

On a picnic at the beach with Suzy, Kiyo and Zatch are practicing the fourth spell when suddenly they hear someone singing a song in the distance. Approaching the voice, they find a little boy named Yopopo in a green outfit dancing to the song.

The day has come when Zatch and Kiyo leave England, so they say goodbye to Kiyo's Father, Kory, Djem, and the others.

At the beginning of the new semester, Kiyo has gone shopping to repair the gate that Zatch broke. On the way back, Suzy is about to be run over by a car. A cute mamodo in the form of what looks like a ladybug saves her in the nick of time.

The battle between Kiyo & Zatch and Apollo & Rops continues. Zatch repels back with Rashield rocks that Rops hurls. However, Apollo nimbly dodges as if having known of the spell. It seems that Apollo possesses a special kind of intuition.

One day, Zatch does not follow Kiyo to school but goes off to play by himself. After helping out Ivy at the botanical garden, Zatch decides to have lunch on a hilltop with a nice view, but he cannot find his box lunch!

The Shemira statue was carved a great 18th Century master and is coming to Japan. Zatch hears from Kiyo that he can experience 100 times the excitement of yellowtail. Zatch decides to go to the museum to see the statue.

Zatch and Kiyo are going to hang out with Megumi and Tia.. The girls had invited Kiyo and Zatch to the amusement park. On the train, Tia is excited to get on the roller coaster with Kiyo.

Kiyo and Zatch arrive at the amusement park much earlier than the time that they were supposed to meet Megumi and Tia. They decide to go inside and take a look around.

At the amusement park, Kiyo and Zatch battle against the enemy tag team of Lupa and Purio and Hige and Zoboron, then Megumi and Tia arrive on the scene and it becomes a battle of 4 against 4.

One day, Zatch is chasing a yellowtail in the ocean, when he finds a fragment of a broken mirror. Zatch takes a fancy to the shiny object and brings it home with him.

Shion begs Zatch to give her the fragment of the mysterious Mirror, but Zatch tells her it's his treasure and is not willing to give it up.

Being given the final piece of the Mirror from Zatch, Shion takes them to Grisor, who has the remaining piece. Kiyo and Zatch, want to learn more about the Mirror, so they tag along. Grisor greets them humbly in his small, ramshackle apartment.

Kiyo and Zatch, with Shion and Nya go after Grisor who had stolen the restored Magic Mirror. Dr. Hakase leads Grisor with a wireless radio and draws them into a trap that they had prepared beforehand.

Kiyo and Zatch charge Grisor who had increased its strength with the power of the magic mirror. They try to look for a chance to attack with their teamwork, but instead they are shot down by the horrifying destructive powers of Grisor's flame magic.

After a scary nightmare where Naomi tortures Zatch, he leaves the house with unusual zeal, thinking that he will finally beat Naomi in a series of challenges and make her stop bullying him.

One day as Kiyo is looking at his spell book and walking with Zatch, a girl wearing Chinese clothing suddenly appears, grabs his book, and flees. When the two follow her, the girl, who is ready and waiting, bows her head.

Zatch, Lien, and Kiyo go to rescue Wonrei, and are attacked by the mamodo, Zabas and the owner of his book, Galliont. Zatch and Kiyo fight back, but are unable to penetrate Zabas' wings.

The Takamine Family goes to a hot spring inn in the mountains. When Zatch and Kiyo come back to their room after enjoying the springs, there is a map to a secret spring nearby in their room.

One day, Kanchome carelessly climbs into a traveling circus troop's truck after seeing some candy and is taken away from Folgore again The town of Monte Frio in Spain - The clumsy Kanchome keeps failing at his circus act and longs to reunite with Folgore.

While Folgore is flirting with all of the girls, Kanchome spots candy in a truck, but it seems to be a trap to a circus! Soon Kanchome meets a young girl named Rushka and her guardian Lilly. Kanchome promises to protect her and be her big brother! What happens when a band of thieves led by Fredo and his mamodo Bago attacks? Outside of that, Tia has her first encounter with Naomi in her outing with Zatch.

Parco Folgore and Kanchome begin their battle against Fredo and his mamodo Bargo. With Bargo being a powerful opponent, Can Folgore and Kanchome defeat them?

While Kiyo is in school, Apollo decides to drop in for a visit, but it wasn't really for a visit. He wanted to have a chat with him about Ropes's book being burnt by Zeno and his bookeeper Dufort.

Zatch decides to go to a Praying Mantis Joe show. And Ponygon, Suzie & the Teacher's Wife decide to come along shopping. Will Praying Mantis Joe save the day when it comes to con artists?

Bali, who been searching for an a opponent that is equal to is appellative; then he heard that there is a mamodo in Japan, that who ever mamodo goes there to battle Zatch never came out with a book. Bali challenges Zatch to duel him or else he will destroy the people that he loves, will Zatch and Kiyo can stop him?

Driven by his goal to become a kind king, Zatch faces off against Bari, who only wants to be the strongest, most powerful king.

Ponygon decides to look for his bookeeper and encounters Kotaro Doronma in his journey. What are Doronma's true intentions?

As Brago and Sherry search for a Mamodo in the mountains, they must save a boy named Jeff and his grandpa from a giant grizzly bear, land developers, and an avalanche. Meanwhile, Zatch and Kiyo enjoy a recent snowfall in their town with Suzie and Ponygon.

Kiyo and Zatch try to find more about the mysterious tablet. Zatch recaps to Tia how many Mamodos he fought. However, a mysterious Mamodo and his bookeeper head toward Japan to claim the tablet.

Kiyo and Zatch are accosted by Dr. Riddles and Kido, who use odd tactics to try to defeat our heroes. After a number of confusing riddles and puzzles, the two human/mamodo teams finally battle it out. But it seems that Dr. Riddles has learned the ins and outs of the spell book!

Kiyo and Zatch continue their fight against Dr. Riddles and Kiddo with the aid of the sixth spell, Rauzuruk. Will Rauzuruk happen to be the spell that they need? Find out in this exciting episode.

Zofis and her partner Koko invite zatch to a mysterious ball using Suzy. But guess what it ends up being a mamodo battle but that doesnt happen in this episode. To add to the trouble Zofis is a mind controlling mamodo that has fire spells.

A mamodo who's in love with Zatch comes to Kiyo's school in search of him. When she comes face to face with Zatch, he can't remember her. She swears that she will never forgive him and will burn his book. At Kiyo's school, she challenges Kiyo and Zatch to a battle.

The battle between Penny and Zatch continues, when a unknown mamodo shows up.

Zatch and Kiyo decide to have a fun day at the park which turns out to be a painful start for him when riding Zatch's train, Zatch and Kiyo then play "Kick The Can" with Ponygon and Suzie, which turns out to be a game with Iwajima, Kane and the teachers wife, Suzie, and Ponygon.

After a fun day in the park, Zatch and Kiyo decide to finish their day by building a sand castle, but at that moment Penny returns with 3 Ancient Mamodo, Dogmos, Erujo, and Boru Bora, to defeat Zatch and Kiyo and burn Zatch's book once and for all!

Tia and Megumi, now with new spells, show up to help Zatch and Kiyo against Penny and her ancient mamodo.

Brago and Sherry go against Byonko and 3 "tag-team" ancient mamodo.

As Zatch, Kiyo, and Tia pinpoint Milordo Z's location, Megumi goes through the hard times at school, Ponygon finds the owner of his book, and Dr. Riddles searches for more allies to help fight Milordo Z.

Kiyo, Zatch, Megumi and Tia break into the Deboro Ruins with Folgore and Kanchome in order to defeat Milordo-Z (Zofis) and Koko and save the innocent people under their control. Unfortunatly, Folgore and Kanchome have their hands full with Alm.

When they think that they finally trapped the two mamodo, a huge armored mamodo named Ganz appears behind Kanchome and Folgore. Now, Kiyo, Zatch, Megumi, Tia, Kanchome and Folgore fight agaisn't Alm and two new mamodo, a blue dragon named Geluos and Ganz. The room ends up flooding. Unfortunatly, the lightning spells don't work underwater. Now Kiyo, Zatch and the rest of the gang must come up with a plan to defeat the mamodo's before they call in for help. Meanwhile, Sherry and Brago fight another Millennium Mamodo and also encounter Dr. Riddles and Kiddo.

Zatch and Tia's battle as Alm and and Geluos rages on as Zatch isn't fighting back. Folgore and Kanchome are still fighting against Ganz and trying to burn his book. After all that is done, Alm warns them that the next opponents will be tougher. Meanwhile, Naomi and Suzie are bored without Zatch and Kiyo around.

While resting, Zatch and his friend meet Victoream, a goofy mamodo with a taste for melon, who challenges them to a fight.

Out of breath and energy, Kiyo and friends come up with a strategy to defeat Victoream.

The team is attacked by two momodo's right after their fight with victoream. The group is in no condition to fight but luckly is saved when Laila,one of the attacking mamodo's turns out to be a traitor and saves the group. It appeares two mamodo's controled by z can't attack each other. While Dalmos powered up and attacks Laila advises them to run. After giving his book to Tia so she can protect it, Zatch and Kiyo team up with Laila to fight Dalmos. Dalmos gains a huge advantage though, since he can attack zatch but Laila can't attack Dalmos. After a frightening display of power Laila appears to have given up, when Ponygon appears with his book owner to take over the fight.

When Ponygon's book owner, Kafk Sunbeam, shows up, we get to see what spells Ponygon has up his sleeves..... or hooves.

While Kiyo learns more about the Moon Stone, Tia and friends have Mamodo trouble at the Hotel. Meanwhile, 4 friendly faces show up to help Tia.

While battling Byonko and his army of mamodo, Dr. Riddles calls on the Majestic 12 to help them fight.

While resting at the hotel, Tia tries to cough up the courage to tell Zatch thank you for saving her.

Zatch and his comrades plan to take on Zofis and end up learning Zofis goals.

Zatch and the others go into the ruins.Then Zofis finds them and he gets them seperated. Tia and Wonrei are fighting with Tsaoron (One of the The Four Supreme Mamodo).Zatch and Ponygon are fighthing Pamoon (One of the The Four Heavenly Kings).And Kanchome and Kido are fighthing with Belugimu EO (One of the The Four Supreme Mamodo).

Belgim E.O. is very bored after being imprisoned in stone for a thousand years. He orders Dr. Riddles' team to perform for him, if they impress him, he says he will them pass through an entryway, if they bore him, he will destroy them!

Dr. Riddles' new strategy seems to baffle Belgim, and the team uses this to their advantage. But a surprising miscalculation ends up injuring Dr. Riddles.

Kido has returned to the mamodo world. Dr. Riddles quickly picks himself up and leads the way further into the ruin. Kiyo's team finally encounters the powerful hidden mamodo who has been controlling the deadly stars.

Pamoon laughs off Zatch and Ponygon's attacks. He dismisses them as naïve. As Pamoon fires off countless attacks, Zatch counters each blow, determined to stop a battle that's waged out of fear and intimidation.

The team realizes that Zofis has been using the fear of being imprisoned in stone to manipulate the Ancient mamodo. Zatch begs Pamoon to stop fighting and offers his friendship.

Zofis summons his Ancient mamodo army to take down Zatch and his team. Weak and out of strength from within, the team finds themselves in a tight spot.

The reunited team agree to leave Zofis to Sherry and Brago. Laila and Albert return. Kiyo and Zatch are happy to see her, but she sends a spell toward them. Kiyo knows that Laila is betraying them out of fear, so he attempts to regain her trust!

Laila tries to remember the secret passage to the room with the Moonstone. After remembering Zofis' song, she remembers that the door is behind the rightmost statue. Megumi's team meanwhile end up in a room with three statue heads.

Kiyo and company stand unable to move while they face Demolt, the last of the Supreme Mamodo. Laila, who has cast off Zofis' control, teams up with Kiyo and the others, she notices that there's a change in Demolt's attacks.

Vile's mind is not being controlled and it seems he supports Zofis and defeats mamodo just for fun. Zatch and the others are outraged at his self-indulgent and arrogant attitude.

Penny & Uri and Byonko & Alvin save Zatch and the others from a tight spot! At First they participated in the battle as Zofis' underlings, but now they see the error in their ways.

Zofis had attained infinite power with a mask linked to the Stone of Moonlight in Demolt's chamber but loses his impregnable shield after the Stone of Moonlight is destroyed.

Zatch's Seventh Spell Zagurzem appears in his spell book! Kiyo realizes it is a powerful spell that charges up electricity and directs Zatch's successive spells to the spot initially hit.

Sherry has lost her power from within and is unable to use spells. She has also lost all will to fight. Brago forsakes her and attempts to confront Zofis just with brute strength. However, nothing is accomplished and Brago just gets hurt.

Sherry resolves once again to rescue Koko from Zofis' mind control. She crushes one of Zofis' arms with a gravity spell and sets things in motion for a counterattack!

Working together with Laila, Dr. Riddles and the rest, the combined forces of Kiyo and the others overpower Zofis with teamwork. Kiyo and Zatch mercilessly launch an attack on Zofis and Kiyo attempts to land the finishing blow.

Zofis no longer has the upperhand and attempts to distract Sherry by tossing Koko down a cliff. However, Sherry anticipates this and catches Koko in midair averting a tragedy.

Kiyo and Zatch have at last returned from the fierce battle in the ruins. They are spending a peaceful New Years Day together with Ponygon when Folgore and Kanchomé visit them. Kiyo shrinks back, and grudgingly invites them in.

Kiyo heads to school, and Zatch tries to follow. Zatch accidentally gets his toy Vulcan stuck on a truck that drives away and chases after it. Suzy tries to tell Kiyo "Welcome back" but is constantly interrupted by Kiyo's friends.

After Kiyo goes to school, Zatch volunteers to do the shopping for Kiyo's mother. Ponygon accompanies him, and on the way, he notices that the park has become a mess. One of the playground children notices Zatch and tells him it is his fault.

Zatch is making a new Vulcan 300 when Tia comes over. Elsewhere, Dr. Riddles is depressed over the loss of Kido. Folgore and Kanchome, while in America, decide to visit Dr. Riddles. Once there, the Majestic Twelve ask Folgore to help cheer up Dr. Riddles.

In a mysterious place, a Mamodo stands above the symbol of a book and announces a message, to the contestants of the Mamodo battle, to assemble at the light.

Sherry reveals that Nicholas and Majirou attacked first. In a flashback, Brago calls Nicholas and Majirou weak and leaves, but counters when they attempt to attack him. Zatch angered by Brago, begins their battle.

Maestro tells his servant to call Brago in to talk. He tells Brago how in the In-between World, Mamodos with spell books are able to cast spells without their human partners. He then asks Brago to join him.

In the Human World, Dr. Riddles, Sunbeam, Folgore and Kanchome are at the structures, investigating them. In the In-between World, Kiyo, Zatch, and Ponygon arrive at the castle.

Kiyo, Zatch, and Brago battle Maestro. Kiyo realizes that Maestro's power involves magnetism and that he is using the coils at the side of the battlefield to increase the powers of his spells.

Sherry and Brago continue their attack on Maestro's barrier in order to test the limits of the coil. They find out "Ion Gravirei" is the limit which the coils can handle.

Kiyo after managing to lose Zatch and Ponygon goes to school. Once there, the teacher Touyama tries to give Kiyo a failing grade by asking him what is his cat's name.

Nicolas is upset about Majirou's book becoming burnt. When he plays his depression through his bagpipes, it causes anyone who hears it to become sad too. Folgore volunteers to bring Nicholas to Italy to rid him of his sadness.

In a deserted area, a large structure rises from the ground. Elsewhere, a Mamodo named Ted and his partner Jido arrive in town, Ted searching for a job to pay for lodging. Ted wanders into a park, after failing to find a job, finds a box that he plans to lodge in. When he looks inside it, however, he finds Zatch.

The battle between Ted and Arth continues with Arth gaining the advantage. Kiyo realizes that Arth's sword absorbs energy which explains Zatch's exhaustion from the battle.

As Ted and Jido prepare to leave, Jido's motorcycle breaks down and he orders Ted to go buy a new spark plug. While searching for the bike store with Zatch, Ted smells Cherish's fragrance and spots a girl with long brown hair wearing a hat. After losing sight of the girl, the two attempt to search for Cherish.

Kiyo receives a letter from Kafk Sunbeam who tells him that he has bought and moved into a home near Kiyo's house. Kiyo decides to go buy Sunbeam a house-warming gift at the department store and Zatch decides to invite some friends to the department store.

Kiyo continues his research on the strange structure but to no avail. Elsewhere, a young man named Gurab and his Mamodo Koral-Q reveal their target to be Kiyo and Zatch.

Ast the battle with Koral-Q begins, he reveals that no one in Japan will be able to defeat him and that he shall defeat Tia and Ponygon after Zatch.

Kiyo and Zatch’s battle with Koral-Q and Gurab continues as Koral-Q reveals that he knew about Zofis and the thousand year Mamodos and calls Kiyo and Zatch fools for attempting to fight Zofis.

After have fun around town, Zatch finds a manga titled "Ka-chan Tazunete Sanzenri", a parody of 3000 Leagues in Search of Mother. Zatch inspired by the story, decides to go to town and search for motherly people to see if he can regain his memory of his mother.

Sunbeam is told that he must go to Hokkaidō for a week of training so he leaves his Mamodo Ponygon with Kiyo and Zatch. Zatch seeing how badly Ponygon wanted to go with Sunbeam helps Ponygon sneak aboard a plane to follow Sunbeam.

Ponygon's battle with Kardio continues as he is overwhelmed by Kardio's attacks. After Kardio freezes Sunbeam’s legs to prevent him from moving. Ponygon’s determination to save his friend reveals a new spell.

Dr. Riddles and Big Boing arrive at Kiyo's house to share information about the weird structure. After Big Boing shows Kiyo a dance, they head to the airport to pick up Megumi and Tia; Folgore and Kanchome; and Li-en and Wonrei.

Kiyo and Zatch see their friends off at the airport. Suzy after seeing a couple ice-skate on television asks Kiyo if he would like to go ice skating. Kiyo's classmate overhears this and decide to come also in order to defeat Kiyo in ice skating. Kiyo invites Zatch, Ponygon, and Sunbeam to go as well.

Zatch receives a letter addressed to him from one of his friends from the Mamodo world, Rein, who asks Zatch to burn his book. Kiyo and Zatch decide to take a plane to Southern Asia to meet Rein and his book owner and discover the reason for this serious request.

Before deciding to burn Rein's book or not, Kiyo and Zatch decide to train Kyle to be more courageous so he may oppress Jill, the woman who took over his home and inheritance.

Zatch and Kiyo are overwhelmed by Rodeux, his partner Chita, Purio and Lupa. Rein seeing Zatch courageously battle reminds him of the first time he met Zatch.

As the battle with Rodeux continues, Kyle casts a spell which creates giant claws that push Rodeux back. Rodeux attempts to attack Kyle but is intercepted by Zatch's "Zakeruga". Kyle then casts Reins strongest spell and defeats Rodeux.

Wonrei acts strangely one day so Li-en follows him. She follows him to a store with a tv and presumes he wants to buy a television. She continues to follow him and sees him with a woman and assumes he is cheating on her.

A professor named Dartangan visits Kiyo and tells him he has taken Kiyo's research experiment before jumping out the window. Megumi and Sunbeam arrive and ask Kiyo if he has seen Tia or Ponygon. They decide to investigate the park and find a message left by Dartangan that tells Kiyo if he wants to see the children again, he must go to the pier and board Dartangan's boat.

Megumi leaves Tia in the care of Kiyo while she travels around the world on a concert tour. After playing with Zatch and Ponygon, they head to sleep. While sleeping, Zatch asks Tia why she is so spirited and she starts to tell Zatch what her life was like when she first arrived in the world.

Zatch, Ponygon, and Tia are living in harmony. While playing at the park, they are approached by a woman named Elle Chivas searching for a child that looks like a rabbit and monkey.

The battle between Tia and Momon continues as Tia tries to hit Momon with "Saisu" but he dodges it. Elle reads Momon's spells, with no knowledge of their effects, which Momon uses to flip Tia's skirt and stare at her panties. Tia's anger causes her to learn a new spell.

Zatch and Ponygon are taken to a festival by Kiyo's mother. Once there, Zatch separates from them and meets up with a rich girl named Natsuko who snuck away from her bodyguards in order to enjoy the festival.

Kiyo invites Megumi and Tia to talk about the mysterious structure and a group that is recruiting Mamodos for unknown reasons. Elsewhere, Jido and Ted run into Bari and Gustav and they quickly become enemies.

Kiyo's classmates invite him to go on a hiking trip, which he accepts. The next day, Zatch and Ponygon follow Kiyo on the hiking trip and Suzy reveals she stayed up late making a present for Kiyo.

Kiyo contacts his allies to come with him to investigate the weird structure. However, Kiyo receives a phone call from Dr. Riddles revealing that Li-en and Wonrei are missing. He receives a picture that reveals the last people that visited the pair were Rodeux and Chita.

Momon refuses to show the team where Faudo is located. Meanwhile, the plane Folgore and Kanchome are on starts to experience technical difficulty and is unable to release its front wheels to land.

The team is discouraged after realizing Faudo is a giant Mamodo. Elsewhere, Dufort and Zeno while on their way to Faudo, reveal that Faudo can be controlled and that is why people are after its power. Riou, informed that eight Mamodos are heading to Faudo's location orders two Mamodos named Keith and Buzarai to deal with the intruders.

Zatch and Kanchome battle Keith and Buzarai but Zatch is overpowered by the pair. Zatch manages to land a "Zagurzem" on Keith but Folgore is injured in the process. Kanchome takes Folgore and flees while Kiyo and Zatch continue the battle. After hiding Folgore behind a bush Kanchome returns to the battlefield determined not to lose another comrade due to his powerlessness.

The Kanchome that disappeared was revealed to be Kanchome's clone created by the spell "Dima Buruk". Kiyo realizes the clones have a physical body and are much stronger than Kanchome. Elsewhere, Megumi's group is attacked by a Mamodo and her partner.

With both sides running out of energy to cast spells, they realize the victor will be the one who uses their final spells effectively. Buzarai uses his strongest spell and Kiyo realizes "Bao Zakeruga" can not defeat it unless powered by at least one "Zagurzem". Elsewhere, Megumi's group battles the Mamodo Cherish and her partner Nicole.

The team regroups and have their wounds healed by Tia. Megumi and Tia tell Kiyo they saw Wonrei and Kiyo realizes Wonrei has failed to find a way to lift Li-en's curse and has resorted to obeying Riou. Then a man named Aleshie and his Mamodo Riya reveal themselves.

They enter the structure until they come upon Faudo. They enter through his mouth and proceed to the stomach where the guardian Unko Tintin awaits. He reveals that all must answer his questions before they can move on, but if anyone answers incorrectly, they shall all fall into the stomachs acid and be used as nutrients for Faudo.

The team is chased through Faudo’s intestines by a giant drill while also dodging tentacles that melt anything they touch. Kiyo realizes there are holes on the walls of the small intestine that will lead them to the liver but they only open when near the drill.

Zarchim sends Wonrei to battle them and the team is hesitant to fight their former ally. Elsewhere, Li-en reminisces about the time she received Riou's curse.

The team consisting of Kiyo, Zatch, Sunbeam, Ponygon, Elle, and Momon, continues through the blood vessel maze and end up in a room where many different paths present themselves. They follow Momon's directions and end up at Faudo's heart. Faudo's guardian of the heart reveals a room in the spinal cord that will give them a detailed map of Faudo's body.

The enemy Mamodo in the room are revealed to be Kardio, his partner Sauza, and Arth. Kardio aims an ice wave at the sleeping book keepers but is intercepted by Momon and Elle. Kiyo and Sunbeam awaken and they also join the battle against the pair.

Kiyo masters the demonic language in under an hour and searches for the hidden functions in the device. Elsewhere, Sunbeam asks why Sauza is working with Ellie and Arth and he reveals that seeing Ellie reminded him of his sister.

Riou takes control of Faudo and announces that those who serve under him will be spared from Faudo's wrath. Everyone obliges except for the team consisting of; Kiyo, Zatch, Megumi, Tia, Folgore, Kanchome, Sunbeam, Ponygon, Alishie, Riya, Ellie, Arth, Elle, Momon, Sauza, and Kardio. Kiyo reveals that they must survive for five minutes.

The team enter Faudo through his mouth with the help of Ponygon and Karudio. They follow a blood vessel to the spinal cord where they take an elevator and arrive in a room where multiple paths present themselves. The team then splits into two, Kiyo's team consists of Kiyo, Zatch, Li-en, Wonrei, Megumi, Tia, Alishie, and Riya while Arth's team consists of Arth, Ellie, Sauza, Kardio, Sunbeam, Ponygon, Folgore, Kanchome, Elle, and Momon. Elsewhere, Zeno and Dufort in an unknown location of Faudo's, watches the teams infiltration of Faudo.

Wonrei completely overwhelms Rodeux in battle and Rodeux realizes he must use Faudo's power to win against Wonrei. Elsewhere, Arth's team meets two Mamodo minions of Riou, Jedon and Fango. Sunbeam and Sauza volunteer to battle them which leads to argument between the two.

Ponygon and Kardio begin their battle against Jedon and Fango. Ponygon's and Kardio's attacks of fire and ice cancel each other out and they are quickly overwhelmed. Fango tells Riou to turn on Faudo's support system which encases the four Mamodo and their respective partners in a glass tube forcing them to battle. Elsewhere, Apollo and Dr. Riddles attempt to find a way to launch an unknown person into Faudo's mouth as he swims.

Kiyo's group continue on and run into Faudo's minions, the Mamodo Gyaron and his book owner Harry. Aleshie and Riya volunteer to battle them while allowing the others to rest and recover their energy.

Aleshie and Riya battle against Zarchim as he looks back at the time he recruited Aleshie and the embarrassment that he caused him.

Arth's team runs into Keith. Folgore manages to distract Keith to allow Arth and Ellie to continue on without being stopped. Folgore realizes Sunbeam and Sauzaa are out of energy to cast spells and tries to distract Keith while they recover before fighting.

Kiyo's team runs into Cherish and her partner Nicole. Ted tells the group to let him handle Cherish. Cherish reveals that Ted betrayed the kindness that her family gave to him. Ted reminisces about the kindness Cherish and her parents gave to him even though he was always getting in trouble. Cherish tells Ted she will defeat him in revenge for her parent's death.

Arth and Ellie reach the room before the control room where they are confronted by Riou. Riou uses a nearby control panel and seals the entrance to the room off so the rest of the team are not able to assist him. Elsewhere, Keith and Bari battle.

The team is able to overpower Riou. Riou tells his book owner Bankis to come out and fight. Bankis is revealed to have been hiding inside Riou and once out, tells them that the timing to cast spells will be easier now. As Riou overpowers the team, Dufort and Zeno arrive shortly after revealing they have burned Zarchim's book and prepare to battle Riou.

As the team thinks of a way to break through the door to the control room, Kiyo and Zatch are teleported inside. Zeno reveals he is Zatch's twin brother. Kiyo asks Dufort, now in control of Faudo, to stop Faudo or the world will be destroyed. Dufort replies he wants to see it destroyed as the current world holds no values.

Tia’s new spell "Chajir Seshirdon" blocks Zeno's attack, saving the group, but Megumi and Tia lose consciousness shortly after. Dufort asks Kiyo why he wants to protect a world which had shunned him for his ability. Kiyo asks Dufort why he does not know if he read his mind. Dufort replies he does not understand Kiyo's heart. They continue to battle and Zeno overwhelms them still.

"Bao Zakeruga" defeats Zeno and causes his book to burn. Before he disappears, Zeno destroys the gem which controls Faudo and tells Zatch if he deserves Bao, he should be able to stop Faudo. Kiyo teleports everyone out of Faudo excluding himself and Zatch using Faudo's system. As Japan nears Faudo's sight, Kiyo plans to use the teleportation device and teleport in front of Faudo and defeat him with "Bao Zakeruga.”