Season 1

16 episodes · 2022

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.

Episodes

E1 · Episode 1

2022 · 47m · 8.6 TMDB

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.

E2 · Episode 2

2022 · 51m · 8.2 TMDB

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.

E3 · Episode 3

2022 · 50m · 8.0 TMDB

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

E4 · Episode 4

2022 · 47m · 8.1 TMDB

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.

E5 · Episode 5

2022 · 48m · 8.4 TMDB

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.

E6 · Episode 6

2022 · 51m · 7.3 TMDB

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

E7 · Episode 7

2022 · 49m · 7.8 TMDB

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.

E8 · Episode 8

2022 · 54m · 8.1 TMDB

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.

E9 · Episode 9

2023 · 53m · 8.8 TMDB

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.

E10 · Episode 10

2023 · 52m · 8.8 TMDB

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.

E11 · Episode 11

2023 · 53m · 7.7 TMDB

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.

E12 · Episode 12

2023 · 53m · 8.2 TMDB

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.

E13 · Episode 13

2023 · 54m · 7.6 TMDB

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.

E14 · Episode 14

2023 · 54m · 8.1 TMDB

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.

E15 · Episode 15

2023 · 60m · 8.2 TMDB

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.