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

Yeonjin and Shin Youngjoon panic over Myeongo. Dongeun takes care of a lingering problem. Yeonjin’s mother schemes to remove a threat.

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.

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.

Tormented by her high school classmates and with nowhere to turn for help, Moon Dongeun sinks into despair before deciding on a new mission in life.