A mentally challenged boy, Dong-gu loves going to school to fetch water for his friends. But he is disappointed, when the school decides to install water purifiers instead.
Jung Jin-young
Choi Woo-hyuk
윤찬
Shin Jung-keun
Kwon Oh-joong
Mun Ka-young
Kim Byong-chul
Lee Won-jong
Kim Kwang-shik
