After the unusual attack on a school 'flower boy', Sung-min, on February 14, the same attacks begin to happen at different high schools on every month of the same day. Rumors say that the next victims will be at Neulparan High School.
Cast
Kim Ki-bum
Ki-bum
Donghae
Dong-hae
Kim Hee-chul
Hee-chul
Kim Young-woon
Kang-in
Choi Si-won
Si-won
Ryeowook
Ryeo-wook
Shindong
Shin-dong
Eunhyuk
Eun-hyuk
Lee Sung-min
Sung-min
Han Geng
Basketball Player
Yesung
Ye-sung
Leeteuk
Panda
Henry Lau
Background Dancer
Kwon Yu-ri
Ballerina
Jeong In-gi
Judo Coach
Byun Seung-hyun
Homeroom Teacher
Park Moon-a
Student
Crew
Lee Kwon
Director, Storyboard
Park Yeon-seon
Writer
Sung Su-ah
Editor
Eo Jeong-il
Assistant Director
Park Ji-sung
Executive Producer
Choi Yong-bae
Executive Producer
Lee Soo-man
Executive Producer
Lim Ji-young
Producer
An Eun-mi
Co-Producer
Song Hye-jin
Production Design
Kim Na-hyeong
Costume Design
Kim Bong-soo
Sound Supervisor
Jung Gun
Production Sound Mixer
Chu In-sik
Lighting Director
Hong Jang-pyo
Special Effects Supervisor
Primary
Original Music Composer
Ji Gi-yong
Key Grip
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