

By Dramabeans
Kim Dae-jin
Tak Jae-young
12
40 minutes
TVING
South Korea
Korean
Source: Wikipedia
Kang Min Moon Seong-hyun as young Kang Min
Park Chan-young Kang Ji Seok as young Chan-young
Gyeong-min's mother.
Kim Cheol's mother
Jung Jong-seok, a detective who tracks messages from a friend 20 years ago. Shim Hyun-seo as young Jung Jong-seok.
Park Min-joo, gyeong-min's wife.
Hwang Gyeong-min/Nam Gi-cheol, who lives without forgetting the memories of school violence 20 years ago, now in the guise of a taxi cooperation ceo. Lee Chan-yu as young Hwang Gyeong-min
Kang Jin-ah, a charismatic detective who is a strong-willed principle dist and is obsessed with cases.
Jin Hae-soo, the youngest detective on the powerful team that investigates a mysterious serial murder case.
Choi Seok-ki, a corrupt teacher who loves money and tolerates school bullying.