The ghost of a lesbian high-school girl takes revenge on the people who used to bully her. And another young girl finds her old diary detailing her love and rejection when she was alive.
김규리
as Min-ah
박예진
as Hyo-shin
이영진
as Shi-eun
공효진
as Ji-won
김재인
as Yeon-an
백종학
as Go Hyeong-seok
맹봉학
as Biology Teacher
정진각
as Vice Principal
Chae Yoon-Seo
as Turtle Girl
Kim Kyeong-Jin
as Group of Singer
Hye-mi Lee
as Student
Shin Hye-Jung
as Classmate
