Dantae and the residents of Hera Palace celebrate a weddding proposal for Seojin. However, police officers arrest Dantae for Suryeon's murder, other residents start to believe he killed his own wife.

Yoonchul introduces Yoonhee as his wife, shocking everyone and especially Eunbyeol. Meanwhile, the doctor advises Seojin not to sing for a while, but she can’t give up on her concert because it can damage her reputation.

Yoonhee sang for Seojin instead of Youngran, and Seojin blames Secretary Do for letting Yoonhee take revenge on her. Meanwhile, Rona decides to act after Yoonhee confesses a sin.

Yoonchul visits Seojin at the hotel, and Seojin hides him when Dantae arrives. Rona comes back to Cheong A Arts High School, and Mari is devastated when she finds out her daughter, Jenny, is bullied by the Hera Club kids.

Seokkyung threatens Seojin to give her the Cheong A Art Festival grand prize. Mari turns against the parents who bullied Jenny and seeks revenge.

Just as Seojin is about to make the announcement for the Cheong A Art Festival grand prize, a janitor interrupts. Rona is unconscious and Yoonhee suspects Eunbyeol. As Seojin finds out Eunbyeol is the culprit, she does everything to hide evidence.

Eunbyeol goes mad as she is engulfed in guilt, and Seojin asks for Yoonchul's help. Yoonhee uses her biggest secret to bring Seojin down.

Yoonhee encounters Aegyo, taken aback because she looks like Suryeon. Seokhoon tries to find out what Eunbyeol has done to Rona, but she cannot remember anything.

Yoonhee and Logan try to convince Aegyo to stay away from Dantae. Meanwhile, Seokhoon senses that there is something his father has to do about Suryeon's death.

Yoonchul is arrested for bribing Mr. Park to give a fake confession, and he takes the blame because he has to protect Eunbyeol. Yoonhee visits Yoonchul to tell him something she hid from him.

Seokhoon answers a phone call from Rona, and he discovers the truth. Dantae is enjoying his ownership of the Cheonsoo District land, while Aegyo prepares to get back at Dantae.

Yoonhee realizes that Aegyo is Suryeon, and Rona also participates. Meanwhile, the residents are worried because they feel guilty for their wrongs to Suryeon.

Yoonhee decides to be punished because of her guilt for Suryeon and Seolah. Logan prepares to propose to Suryeon while Suryeon discards all of Dantae and Seojin's belongings in the penthouse.