Cho Seung-yeon

as Seong Hyeon-guk · 5 episodes

as Yoon Jeong-ki · 12 episodes

as Homeroom teacher

as Apt. 702 Resident

as Seong In-jae · 12 episodes

as Kang Il-chan · 4 episodes

as dean of academic affairs (Yu-seong Tech) · 10 episodes

as Wu Cheol-yong · 12 episodes

as Chun Soo-beom · 12 episodes

as Choi Han · 2 episodes

as Kwak Se-hwan · 16 episodes