Cast
Ahn Jae-hyun
Lee Kang-Woo • 32 episodes
Kim Tae-hyung
Lee Min-Hyeok • 32 episodes
Oh Yeon-seo
Joo Seo-Yeon • 32 episodes
Kim Seul-gi
Kim Mi-Kyung • 32 episodes
Heo Jung-min
Park Hyun-Soo • 32 episodes
Min Woo-hyuk
Joo Won-Jae • 32 episodes
Cha In-Ha
Joo Won-Suk • 32 episodes
Kim Jae-yong
Joo Seo-Joon • 32 episodes
Lee Jung-sic
Bully University Student • 32 episodes
Kwon Oh-kyung
[Chief Affairs of Shinhwa high school] • 32 episodes
Seo Dong-won
Doctor Kim • 6 episodes
Yoon Hae-young
Oh Mi-Ja • 5 episodes
Yoon Da-hoon
Kang-Woo's father • 3 episodes
Shin Do-hyun
Baek Jang-Mi • 7 episodes
Shin Ji-hoon
Park Seok-Min • 2 episodes
Kim Yeong-ok
Chairwoman Han • 5 episodes
Hwang Woo-seul-hye
Lee Kang-Hee • 7 episodes
Jang Yoo-sang
Choi Ho-Dol • 4 episodes
Joo Hae-eun
Lee Joo-Hee • 7 episodes
Kang Tae-oh
Jung-Tae • 2 episodes
Park Young-soo
Vice principal of Sinhwa high school • 9 episodes
