Yeong-nam, an exam instructor, faces challenges after a student's death due to exam stress. He embarks on a journey to teach elementary school kids despite battling cancer, highlighting struggles and triumphs in education.
Uhm Tae-woong
Kim Yeong-nam
Park Sang-myeon
Vice Principal
Jeon Su-gyeong
Principal
Yoon Hyeon-sook
PTA President
Choi Yi-na
Nam Dae-hyeob
Hong Jeong-min
Eun-bi
Lee Jae-joon
Joon-soo
Jo Jae-young
Chang-il
Lim Han-bin
Han Chang-min
Doyeon
Lee Sung-jong
Lee Jeong-chul
Director
Choi Seok-hwan
Writer
Lee Min-ho
Producer
Jang Kyu-sung
