Han Seon-hwa

Kang Eun-kyung

홍예지

Kim Ji-soo / Aoi

여름

Park Saet-byul / Riko

이화원

Jung Min-ji / Haruka

유선호

Idainashi

Park Cheol-min

Headmaster

Kim Hyun

Choi Sook-jung

Jeong Man-sik

Jung-ah's father