Actors

Actor

Kang Yang-hyun

Actor

Cheon Gi-beom

Actor

Bae Gyu-hyuk

Actor

Hong Sun-gyu

Actor

Jung Kang-ho

Actor

Heo Jae-yoon

Actor

Jung Jin-wook

Actor

Teacher Lee

Actor

Messy hair

Actor

Gyu-hyuk's Mother

Actor

Principal's Wife

Actor

Gi-beom's Father

Actor

Gi-beom's Mother

Actor

Teacher 1

Actor

Teacher 2

Actor

Teacher 3

Actor

Teacher 4

Actor

Yongsan High school coach

Actor

50s Man

Actor

Sportscaster