A former Asian Games record breaker and Olympic tryout, Kim Gwang-su, endures beatings, abuse, and constant ridicule from his swimming coach. To justify this abusive behavior, his coach constantly reminded Gwang-su - this is for your own good.
Yoo Jae-sang
Joon-ho
Park Hae-joon
Gwang-soo
Lee Hang-na
Jung-ae
Choi Moo-seong
Young-hoon
Jung Ga-ram
Young Gwang-soo
You Chea-myung
Coach Park
Kwak Min-seok
Director Kim
Kim Do-young
Restaurant Manager
