A boy falls to his death at school, but Ok Chan-mi does not believe that her twin brother, Park Won-seok, committed suicide. Chan-mi transfers to her brother's school, Yongtan High, and meets Ji Soo-heon, who witnessed her brother's death. A "hero," who avenges bullied students, appears at Yongtan High. Chan-mi speculates that it may be connected to her brother and starts looking for this hero.
Shin Ye-eun
Lomon
Seo Ji-hoon
Chae Sang-woo
Lee Soo-min
Score: 7.5
Score: 7.8
Score: 7.3
Score: 6.8
Score: 7.0
Score: 4.0
Score: 8.5
Score: 5.0
