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.
Hur Jin-gyu
Dong-gu
Joon-tae
Sang-chul
Coach Kwon
Oh Ye-ryung
Umpire
Real Estate Company President
Fried Chicken Delivery Man
Baseball Club Member
Min-soo
Teacher
Owner's son
Mi-na
President of the Women's Association
Chemist
Owner's wife
