Ok Chanmi does not believe that her twin brother, Park Wonseok, committed suicide; Chanmi transfers to her brother's school, Yongtan High; a "hero" appears at Yongtan High, and Chanmi speculates that it may be connected to her brother.
EPISODE 1
Episode 1
Chanmi transfers to her twin brother's school to find out the truth about his suicide.
EPISODE 2
Episode 2
Chanmi learns a shocking truth of a different life that her brother lived.
EPISODE 3
Episode 3
Sooheon punishes Sa Jungkyung and is called a hero by the students, but Chanmi grows suspicious.
EPISODE 4
Episode 4
There is a scheme to kick Chanmi out of school; Sooheon advises her to leave.
EPISODE 5
Episode 5
Wonseok's case is reclassified as a homicide; Chanmi learns of Wonseok's lie to her.
EPISODE 6
Episode 6
Sooheon finds himself in a predicament as he becomes the number one murder suspect.
Shin Ye-eun
Lomon
Seo Ji-hoon
Chae Sang Woo
Lee Soo-min
Jung Soo Bin
Kim Joo-ryeong
Kang Yul
Wooyeon
Jin Ho-eun
Kim Yujin
