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イ・ジェフン

Jang-ho

ハン・ソッキュ

Sang-jin

강소라

Sook-hee

이재용

Gang Boss

진경

Mi-sun

ペ・ソンウ

Sang-jin's Alumnus (uncredited)

チョ・ジヌン

Chang-soo

김지석

Drunken Man (cameo) (uncredited)

이상훈

Teacher

윤영균

Delivery Man

Yang Han-yeol

Ji-min

オ・ダルス

Principle Deok-saeng