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Lee Je-hoon

Jang-ho

Han Suk-kyu

Sang-jin

Kang So-ra

Sook-hee

Lee Jae-yong

Gang Boss

Jin Kyung

Mi-sun

Bae Sung-woo

Sang-jin's Alumnus

Cho Jin-woong

Chang-soo

Kim Ji-seok

Drunken Man (cameo)

Lee Sang-hoon

Teacher

Yoon Yeong-gyun

Delivery Man

Yang Han-yeol

Ji-min

Oh Dal-su

Principle Deok-saeng