Sol-hee helps Do-ha escape from the town residents. But she later finds out that he is a new neighbor who moves into the apartment where Sol-hee lives. Meanwhile, Deuk-chan gets blackmailed by Moo-jin. By force, he sets up a meeting where Do-ha must face Moo-jin face to face. To uncover his secrets, Moo-jin hires Sol-hee to come to the meeting.

Sol-hee feels bad that Do-ha has not returned home after that incident. After a few days, Do-ha and Sol-hee run into each other in front of their apartment. Meanwhile, Syaon ends up in a hospital after she sprains her ankle on stage. Sol-hee's mother tries to get some pocket money from Sol-hee by giving false excuses without getting caught.

Sol-hee let Do-ha hide in her apartment to dodge the reporters. Then Sol-hee realizes that he has not told a single lie to her so far, and she is confused about whether her ability does not work on him or he is telling the truth. Therefore, Sol-hee tries to hang out with him more often to make him say a lie. Meanwhile, Kang-min receives a report at Sol-hee's apartment.

Sol-hee finally hears Do-ha's first lie, which is the most unexpected and terrifying to find out. Sol-hee decides to stay out of his life now that she figured out her ability works well on him, and he is also an ordinary person, but she can't stop thinking about him. Meanwhile, a man with a mask posts a video of him, saying he is Kim Do-ha.

With the help of Sol-hee, Do-ha stops covering his face with a mask outside. Their feelings for each other grow stronger as they go through challenges together. Just when everything seems perfect, Sol-hee runs into her mother while working for one of her clients, and someone comes to see Deuk-chan to ask about Do-ha.

Even though Sol-hee confessed her ability to Do-ha, he stays closer to her and treats her the same, unlike everybody else. Both Sol-hee and Do-ha finally have each other who they can trust and rely on. Meanwhile, Do-ha and Sol-hee visit Yeonseo Bakery and find something fishy about a customer.

Whenever Do-ha denies that he committed murder, Sol-hee can hear that it is a lie. It breaks her heart as she believed he is the only person who does not lie about anything, yet he told her the worst lie of all. Meanwhile, Deuk-chan wants Do-ha to move out of the apartment and stay away from Sol-hee now that she finds out about Seung-ju.

Do-ha tells Sol-hee everything about what happened back in his hometown with Eom-ji. Do-ha clears up the misunderstanding and returns to his apartment in Yeonseo-dong with Sol-hee. Meanwhile, Kang-min finds out about the Hakcheon Beach case, and Eom-ho gets to Syaon.

Kang-min saves Do-ha from Eom-ho. He warns Do-ha to keep Sol-hee safe and not to let her find out about the incident. Meanwhile, Deuk-chan tells Yeon-mi about Sol-hee. Yeon-mi visits Sol-hee's cafe and sees Do-ha and Sol-hee together.