Extracurricular Guest cast, played by Kwon Han Sol Episode 1x01: Episode 1 (Apr 29, 2020) Episode 1x02: Episode 2 (Apr 29, 2020) Episode 1x05: Episode 5 (Apr 29, 2020) Episode 1x06: Episode 6 (Apr 29, 2020) Episode 1x07: Episode 7 (Apr 29, 2020) Episode 1x10: Episode 10 (Apr 29, 2020)
