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남윤수

Jeong Seong-yoon

이수민

Cha Ga-eun

지민혁

Ahn Do-hyun

김도아

Han Yeo-reum

오세은

Yoo Min

Jang Sung-yoon

Joo Da-young

Kim Young-jae

Ryu Jae-hoo

Yoo Kyung

Kim Ji-ho

Im Too-chul

Cha Hyeon Soo [Cha Ga Eun's uncle]

So Yun-ho

Assistant Homeroom Teacher