A misunderstood loner is drawn out of his shell after transferring to another high school, where he comes across new ordeals -- and first love.
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Ong Seong-wu
Choi Joon-Woo
Kim Hyang-gi
Yoo Soo-Bin
Shin Seung-ho
Ma Whi-Young
Kang Ki-young
Oh Han-Kyeol
Shim Yi-young
Joon-Woo's mother
Kim Sun-young
Soo-Bin's mother
Choi Jae-woong
Choi Myeong-jun
Moon Bin
Jung Oh-je
Jeong Young-joo
Park Geum-ja
Jung Hyeon-jun
Choi Joon-Woo (young)