Delightfully Deceitful

Moo-young has only been taking cases of high-profile clients due to his health condition. But he can no longer suppress the passion in him, so he decides to take the Geumseong murder case. Thanks to him, Ro-um gets exonerated. After being released from prison, Ro-um quickly finds a way to make money using her photographic memory.

Moo-young learns that Ro-um was one of the kids sponsored by the Jeokmok Foundation. He learns the history of how Ro-um grew up and why she had to confess that she killed her parents. Meanwhile, Ro-um calls her old friends to carry out the plan she has been planning all her life.

Ro-um catches a man trying to capture her photos and finds out how he's been taking photos of random women secretly. When Moo-young comes to help her, Ro-um suggests unlawful ways to punish him. Meanwhile, Moo-young looks for ways to help Ms. Seo, who lost her son after she gave him up for adoption.

Ro-um uses all the ways to win Myung-hoon's insurance money that is worth 400 million won. Yo-han pays a surprise visit at Moo-young's place, and Moo-young covers up for Ro-um who was hiding there. Meanwhile, Ringgo gets kidnapped by a voice phishing ring, and Ro-um comes up with a way to save Ringgo.

After finding out about Jeokmok Kids, Moo-young declares to Ro-um that he'll help with her fraud. The Jeokmok Kids come together as a whole after Nasa joins them. They begin a new operation, and they use Moo-young as their frontman. Ro-um is determined to show him the difference between a con artist and a lawyer.

Ro-um calls the police on Moo-young, setting him in a trap. But Moo-young quickly thinks of a way to make his way out of the situation. Meanwhile, Ye Chung-sik gets killed in his cell, and the killer names Ro-um as his instigator.