Yoon Tae-oh (16 episodes, 2019)
Choe Hun (16 episodes, 2019)
Han Song-i (16 episodes, 2019)
Seo Do-hyeon (16 episodes, 2019)
Oh Ga-rin / O Ga-rin (16 episodes, 2019)
Oh Ga-rin (16 episodes, 2019)
Se-Hyeon (16 episodes, 2019)
Seo Do-Hyeon / Dohyun (16 episodes, 2019)
Tae-oh's stepmother (10 episodes, 2019)
(8 episodes, 2019)
Tae-Ho Kang (8 episodes, 2019)
(6 episodes, 2019)
Store Owner (4 episodes, 2019)
Ga'rin's Mother (4 episodes, 2019)
Art Student / Friend of Han Song-i / Mom (3 episodes, 2019)
Song-i's mother (1 episode, 2019)