Jooin, a 17-year-old student confused by love, unleashes chaos with some words spoken in a moment of anger. Anonymous notes questioning her actions begin to arrive, altering her quiet life.
Seo Su-bin
Lee Jooin
Chang Hyae-jin
Kang Taesun
Kim Jeong-sik
Jang Suho
Kang Chae-yun
Gong Yura
Lee Jae-hee
Lee Haein
Park Ji-yun
Jang Noori
Kim Ye-chang
Park Chanwoo
Go Min-si
Han Mido
Lee Sang-hee
Yang Boa
Lee Dae-yeon
Oh Daehan
Kim Suk-hoon
Lee Kidong
Baek Hyun-joo
Lee Injoo
Byun Joong-hee
Bae Yunja
Moon Hye-in
Ms. Song
Kim Min-ji
Kwon Somi
O Jung-won
Hong Bomi
Kim Yun-jeong
Pyo Dami
Choi Ga-in
Choi Miyun
Son Seung-beom
Son Beom
Lee Seo-i
Lee Munha
Kim Ji-min
Kim Jiyeon
Jung Eun-kyoung
school principal
Kim Joon-bum
dean of students
Kim Geu-lim
lawyer
Kim Do-hyeong
Suho's father
Yoon Ga-eun
Director
Kim Se-hun
Producer
Kim Ji-hyun
Director of Photography
Kang Dong-geon
Lighting Director
An Ji-hye
Production Design
Bae Soo-chan
Production Sound Mixer
Jenna Ku
Screenplay
Lee Choong-yoon
Costume Design
Lee Min-hwi
Original Music Composer
Park Se-young
Editor
Go Eun-ha
Sound Supervisor
Kim Yeol-hoe
Colorist
Kim Ju-young
Makeup & Hair
Jeong Seong-ho
Martial Arts Choreographer
Baek Gyeong-won
Nam Hyo-jin
Line Producer
Choi Won-seok
Assistant Director
Oh Seul-gi
Visual Effects
Lee Geum-yeol
Boom Operator
Choi Yoon-hee
Executive Producer
