Doyeong issues an ultimatum. Dongeun demands a piece of evidence be handed over. Yeonjin attempts to do damage control after old videos appear online.

As the final pieces of Dongeun’s revenge plot slot into place, she considers what comes next — and what it will mean for Yeojeong.

As Sara and Yeonjin deal with the aftermath of their crumbling reputations, Dongeun learns the details behind Yeojeong’s private struggles.

Questions arise over Myeongo, Dongeun gives Yeonjin a chance to come clean about her past, and the circumstances of Yoon Sohee’s death are revealed.

Yeonjin threatens Hyeonnam after discovering her involvement with Dongeun. Yeojeong devises a way to get the truth out of Yeonjin.

Hyejeong finds an incriminating recording on Myeongo’s tablet, and Hyeonnam receives an unwelcome visitor as she prepares to send her daughter abroad.

Doyeong meets with Choi Hyejeong to find out more about his wife — and her past. Yeonjin digs into Dongeun’s private life.

Already on edge over the past resurfacing, Yeonjin grows more anxious when she learns about her daughter’s new homeroom teacher — and of a sudden death.

Son Myeongo’s sudden absence causes tension in the friend group. Dongeun finds her trust in Kang Hyeonnam tested.

With Park Yeonjin’s wedding on the way, Dongeun’s revenge rolls out according to plan. Meanwhile, a fateful encounter at a hospital takes place.