1. 1
   

   Episode 1

   47m

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

2. 2
   

   Episode 2

   51m

   With Park Yeon-jin's wedding on the way, Dong-eun's revenge rolls out according to plan. Meanwhile, a fateful encounter at a hospital takes place.

3. 3
   

   Episode 3

   50m

   After securing the services of an amateur sleuth, Dong-eun uncovers scandalous secrets that she leverages for the next phase of her scheme.

4. 4
   

   Episode 4

   47m

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

5. 5
   

   Episode 5

   48m

   While Ha Do-yeong comes across an intriguing game opponent, Yeon-jin realizes her deepest secrets are at stake when she tries to intimidate Dong-eun.

6. 6
   

   Episode 6

   51m

   Son Myeong-o's sudden absence causes tension in the friend group. Dong-eun finds her trust in Kang Hyeon-nam tested.

7. 7
   

   Episode 7

   49m

   Dong-eun shares her traumatic past with Joo Yeo-jeong, who has unfinished business of his own. A new plan is put in place for Hyeon-nam's daughter.

8. 8
   

   Episode 8

   54m

   Do-yeong meets with Choi Hye-jeong to find out more about his wife — and her past. Yeon-jin digs into Dong-eun's private life.

9. 9
   

   Episode 9

   53m

   Questions arise over Myeong-o, Dong-eun gives Yeon-jin a chance to come clean about her past, and the circumstances of Yoon So-hee's death are revealed.

10. 10
    

    Episode 10

    52m

    Yeon-jin threatens Hyeon-nam after discovering her involvement with Dong-eun. Yeo-jeong devises a way to get the truth out of Yeon-jin.

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