EPISODE 01
Episode 1
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.
47 minEPISODE GUIDE
Season 1
A high school student dreams of becoming an architect. However, she had to drop out of school after suffering from brutal school violence. Years later, the perpetrator gets married and has a kid. Once the kid is in elementary school, the former victim becomes her homeroom teacher and starts her thorough revenge towards the perpetrators and bystanders of her bullying days.
EPISODE 02
Episode 2
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.
51 min
EPISODE 03
Episode 3
After securing the services of an amateur sleuth, Dong-eun uncovers scandalous secrets that she leverages for the next phase of her scheme.
50 min
EPISODE 04
Episode 4
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.
47 min
EPISODE 05
Episode 5
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.
48 min
EPISODE 06
Episode 6
Son Myeong-o's sudden absence causes tension in the friend group. Dong-eun finds her trust in Kang Hyeon-nam tested.
51 min
EPISODE 07
Episode 7
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.
49 min
EPISODE 08
Episode 8
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.
54 min
EPISODE 09
Episode 9
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.
53 min
EPISODE 10
Episode 10
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.
52 min
EPISODE 11
Episode 11
Hye-jeong finds an incriminating recording on Myeong-o's tablet, and Hyeon-nam receives an unwelcome visitor as she prepares to send her daughter abroad.
53 min
EPISODE 12
Episode 12
Dong-eun's end game comes into focus as she sends Jae-jun a troubling package and orchestrates a plan to take down Yeon-jin and Lee Sa-ra.
53 min
EPISODE 13
Episode 13
As Sa-ra and Yeon-jin deal with the aftermath of their crumbling reputations, Dong-eun learns the details behind Yeo-jeong's private struggles.
54 min
EPISODE 14
Episode 14
Yeon-jin and Shin Yeong-jun panic over Myeong-o. Dong-eun takes care of a lingering problem. Yeon-jin's mother schemes to remove a threat.
54 min
EPISODE 15
Episode 15
Do-yeong issues an ultimatum. Dong-eun demands a piece of evidence be handed over. Yeon-jin attempts to do damage control after old videos appear online.
60 min
EPISODE 16
Episode 16
As the final pieces of Dong-eun's revenge plot slot into place, she considers what comes next — and what it will mean for Yeo-jeong.
71 min