Friendly Rivalry

Lee Hye-ri

as

Yoo Je-yi

Chung Su-bin

as

Woo Seul-gi

Kang Hye-won

as

Joo Ye-ri

Oh Woo-ri

as

Choi Gyeong

Kim Tae-hun

as

Yoo Tae-joon

Chae Seo-eun

as

Jo Ah-ra

Choi Young-jae

as

Nam Byeong-jin

Kim Sang-ji

as

Beom-soo

Lee Won-jae

as

Woo Do-hyeok

Yoo Jung-Rae

as

Homeroom Teach...

Kang Jin-ah

as

Kwon Hee-yoon

Ma Hyun Ji

as

Park Byeong-hui

Choo Ye-jin

as

Yoo Je-na

Ha-min

as

Principal