
A world of troubled youths.
The suicide of a former high-school bully puts the boy's father on a quest for answers.
Lee Je-hoonGi-tae
Seo Jun-youngDong-yoon
Park Jeong-minHee-joon
Cho Seong-haFather
Lee Cho-heeSe-jeong
Bae Je-giJae-ho
Kim Lok-kyoungHyeon-soo
Heo Ji-wonJi-won
Shin Un-seopDetectiveJeon Min-hyunLegoMin Jong-giRaccoonJang Dae-yunTeacherYoo AnnDong-yoon's motherYoon Yeong-seopSe-jeong's fatherKang Bong-sungTeacher