Extracurricular Guest cast, played by Im Ki Hong Episode 1x05: Episode 5 (Apr 29, 2020) Episode 1x06: Episode 6 (Apr 29, 2020) Episode 1x07: Episode 7 (Apr 29, 2020) Episode 1x08: Episode 8 (Apr 29, 2020) Episode 1x09: Episode 9 (Apr 29, 2020)
