Ikki Igarashi's life turns to the bizarre when he starts seeing a demon who appeared from within his body.

Ikki refuses to continue using the Revice Driver as he insists on working at his family's sento and is afraid of Vice's desire to eat humans.

As the Igarashis face an eviction notice and the potential loss of their sento due to city renovations, Daiji visits his hospitalized mother, Yukimi, for advice.

Ikki successfully rescues Sakura and Ayaka from a Deadman, only to learn their kidnapper is not in possession of the corresponding Vistamp, forcing him and Vice to find it before it causes more trouble.

After Ikki officially joins Fenix, his father Genta takes advantage by establishing a project to garner subscribers.

In the hopes of identifying the mysterious Kamen Rider Evil, Ikki and his friends develop a strategy involving Bon.

While Ikki is dispatched to stop two of four thieves who became Phase 2 Deadmen, Kadota notices Daiji's sudden personality change.

To celebrate Yukimi being discharged from the hospital, the Igarashis take a trip to a hot spring resort. Upon arriving however, they learn that their regular customers, the Ushijima family, are also there.

After the Igarashi family discovers what happened to Daiji, Fenix orders Ikki to eliminate Kagero.

Despite learning that Kagero was spawned from Daiji's inferiority complex towards him, Ikki continues to fight in the hopes of reaching his brother.

Due to the increasing numbers of Deadmen-related crimes, people who receive Vistamps begin to use them in new ways.

After Sakura awakens her inner demon instead of becoming a Kamen Rider and Ikki is injured while protecting her, Daiji demands she hand over her Rider equipment to Fenix so they can investigate the person who sent them.

Fenix is forced to land their mobile headquarters, the Sky Base, in order to refuel, restock on supplies, and give several of their operatives, such as Kadota, time off.

Wakabayashi is suspected of being a traitor and the contract holder connected to the Chameleon Deadman. In spite of Daiji and Kadota's shock, Karizaki decides to set a trap for the Deadman to confirm.

A shocked Aguilera discovers she is intended to become a sacrifice for Giff's revival instead of his bride, which her right hand Orteca knew about and withheld from her while her bodyguard Julio becomes livid over the revelation.

Deadmans' attack has been thwarted, but Aguilera and Julio are on the run together while Orteca and the Chameleon Deadman move forward with their own plans.

Shortly after the Chameleon Deadman's demise and Kadota's promotion to commander, Karizaki discovers the truth behind Genta's condition.

Upon learning Deadmans can use the Giff Stamp to sacrifice humans and turn them into Gifftarian Deadmen, Ikki strengthens his resolve to avert Giff's revival.

After Kamen Rider Revice successfully masters the Volcano Rex Vistamp's power and develop the ability to separate Gifftex Deadmen from their human hosts while restoring Julio's humanity, Orteca grows worried over the latter prospect and begins to target Kadota.

After Yamagiri is revealed to be a traitor when she discovered dubious operations within Fenix, Kadota's condition grows worse as he starts hearing his Demons Driver telling him it will devour him.

Ikki and Vice rescue Kadota from the Demons Driver, but he chooses to resign from Fenix due to his fluctuating emotions and wavering loyalty to the organization; Fenix has captured Orteca, who has been separated from his Deadman form.

After losing Kadota to Orteca, Ikki buries himself in his sentô work to distance himself from the tragedy.

Following a mishap with the unsanctioned Rolling Vistamp, Ikki and Vice switch corporeal states. Overjoyed by his new state of being, the latter goes rogue to destroy the Vistamp and make the switch permanent.

Following Kagero's testimony regarding Fenix and Giff, George decides to investigate them once more while helping Ikki and Vice reverse the Rolling Vistamp's side effects.

Following Genta Igarashi's sudden transformation into Kamen Rider Vail, Igarashi siblings discovers they are Giff's descendants by birth through their father.

Following Genta Igarashi's sudden transformation into Kamen Rider Vail, the Igarashi siblings discover they are Giff's descendants through their father as their inner demons' connection to the original demon grows stronger.

Akaishi reveals Julio, Orteca, and Aguilera are test subjects used by Noah, a group of criminal scientists who seek to use Giff's cells to turn humans into demons, and that he has been using Fenix to transform its soldiers into demons.

As Giff's eerie awakening becomes stronger, it causes Vice to go berserk within Ikki's body and keep escaping from Weekend's custody easily.

Sometimes after Vice's rescue and Orteca's demise, George and the Igarashi siblings discover Kadota is alive, albeit suffering from amnesia.

While at his high school soccer club reunion, Ikki reunites with his former coach and mentor Subaru Kimura, who is now a famous voice actor.

After Sakura joined Weekend, she and Tamaki encounter Aguilera as she finally resurfaces after being forsaken by Giff.

After Sakura joined Weekend, she and Tamaki encounter Aguilera as she finally resurfaces after being forsaken by Giff. But Aguilera is acting strange as she attacks Sakura.

As Lovekov suddenly becomes unresponsive to Sakura's commands, the latter must re-learn her missing motivation before freeing Aguilera from her Deadman form.

After Aguilera joins Weekend and gains Sakura's friendship after her humanity is restored, the Igarashi siblings regroup with their allies to stop Akaishi from increasing Giff's power and save Akemi.

The Igarashi siblings, George, and Weekend must re-coordinate their plan to save Akemi, who has fallen into darkness, and prevent Akaishi from announcing his plan to bring about a demon apocalypse on Earth.

Following Akaishi's announcement and a tragic incident in Fenix, the peace keeping organization is no more.

In response to Giff's full scale invasion of Earth and Fenix's failed demon removal stamps, Weekend publicly reveals themselves to the world and urges civilians to rebel against Akaishi and his lies, despite the risk.

Shortly after Akaishi murders Akemi, the Karizakis struggle to create a new Vistamp to counter the revived Giff until Genta confronts his children before allowing himself to be used in the creation of the Giffard Rex Vistamp for Revice.

With Genta surviving a cell transfusion surgery, the Karizakis create the Giffard Rex Vistamp, which Ikki and Vice use to become Kamen Rider Ultimate Revice and give humanity hope and inspire citizens to either join Weekend in fighting Giff's tyranny or build shelters across the city. Furious, Akaishi begins his plot to invade Weekend's base.

Because of Daiji's stubbornness went to the path of devil, Weekend marked him as an enemy in retaliation for betraying his own allies and families who opposes the demon.

After learning of Kagero's death and its negative effect on Daiji's emotions and judgment, Genta intends to settle his conflict with Vail on his own.

After receiving a modified Vail Driver from George, Genta intends to settle the score with a weakened Vail by transforming into Kamen Rider Destream and facing the demon in combat.

While Genta and Vail reconcile with each other following their battle, and Daiji were about to rejoin his family at the same time, Giff revives Akaishi as a Gigademos.

While Hikaru successfully defeats Akaishi and avenges Kimiko and Tasuke, he is unable to kill him due to the Over Demons system taking a heavy toll on him.

With Hiromi's help, Daiji sees the error of his ways and revives Kagero, restoring his spiritual balance and returning to his family's side.

While Vice mentally struggles against Giff, the heroes learn that defeating Giff's demons and freeing the previous victims who were used for the demon's revival spreads his parasites at a faster rate.

With Giff finally defeated properly, the Igarashis and their allies intend to have a peaceful day while Fenix reforms under new management.

After barely escaping from Juuga, the Igarashi siblings learns from Hiromi the truth that he discovered behind the recently fallen scientist's rampage.

After George is freed from Chic's control, Ikki has forgotten all memories of his family and goes to pursue a normal life. However, a corrupted Vice arises as a new threat.

What seemed to be Vice betraying Ikki, turns out to be his way of attempting to restore Ikki's memories. However, the restoration of Ikki's memories would mean voiding the contract between the two.