Moon Soo awakes routinely from a traumatic dream and opens a bathhouse in the morning. Her traumatic experience has given her a passion for building safety working part-time in architecture. Moon Soo is given an opportunity to join a project team.

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Moon Soo confirms to Joo Won that she is determined to see the project through; Moon Soo keeps running into Gang Doo; Yoo Jin becomes project manager; Gang Doo gets a job on-site.

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Moon Soo and Gang Doo are survivors of the shopping mall collapse. Moon Soo cannot avoid Gang Doo, despite her best efforts; an investigation puts Moon Soo in trouble.

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Moon Soo suffers amnesia from the accident; Moon Soo confronts Gang Doo about the accident; Gang Doo talks to Yoo Jin about Joo Won.

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Gang Doo critiques Joo Won; Gang Doo and Moon Soo look for tombstones for a new monument; Yoo Jin looks unfavorably on Yoo Taek's performance

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Gang Doo has suspicions about the grandmother's mood change; Wan Jin notices something about Moon Soo's picture of Joo Won; Moon Soo's attempts to hide her emotions upsets Gang Doo.

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Forced to spend the night together, Moon Soo and Gang Doo bond while sharing family stories; Joo Won makes his aspirations known at the family reunion.

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Gang Doo and Moon Soo look for good construction materials for the project; Joo Won puts his foot in his mouth at a meeting; Yoo Jin must do Yoo Taek's work to be sure it's done right.

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Moon Soo sees Gang Doo and Yoo Jin together and comes to the wrong conclusion; Gang Doo tries hooking Moon Soo up with Joo Won; Yoo Jin tells a story that gives Moon Soo a revelation.

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Moon Soo remembers all and finds Gang Doo in her past; Gang Doo faces his past; the grandmother takes a turn for the worse; Moon Soo purseues Gang Doo.

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Gang Doo pays a final visit to the grandmother; Moon Soo starts a new project; Gang Doo acts on the grandmother's final request.

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Gang Doo agrees to the new contract; Moon Soo gives Gang Doo's medicine to Jae Yeong; Moon Soo's remarks about the drawings of the old mall startles Joo Won.

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So Mi discusses dates and locations with Moon Soo and Gang Doo; Yoon Ok tells Dong Cheol about the past; Joo Won's callousness disturbs Yoo Jin.

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Moon Soo and Gang Doo come face-to-face with their long-repressed trauma; Gang Doo comforts Moon Soo.

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Moon Soo questions her purpose; Gang Doo tells Moon Soo they should complete the monument together; Yoo Jin tries to help Joo Won; Yoon Ok sets off somewhere.

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The others must find a suitable liver donor for an ailing Gang Doo; having looked over Joo Won's documents, Yoo Jin comes to a major decision.

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