Friendly Rivalry

The story of us who never learned how to lose.

A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.

Mystery Drama

Lee Hye-ri

(Yoo Je-yi)

Chung Su-bin

(Woo Seul-gi)

Kang Hye-won

(Joo Ye-ri)

Oh Woo-ri

(Choi Gyeong)

Kim Tae-hun

(Yoo Tae-joon)

Chae Seo-eun

(Jo Ah-ra)

Choi Young-jae

(Nam Byeong-jin)

Kim Sang-ji

(Beom-soo)

Lee Won-jae

(Woo Do-hyeok)

Yoo Jung-Rae

(Homeroom Teacher)

Kang Jin-ah

(Kwon Hee-yoon)

Ma Hyun-ji

(Park Byeong-hui)

Choo Ye-jin

(Yoo Je-na)

Ha-min

(Principal)

Lee Na-ra

(Joo Ye-ri Mother's)

서은오

(Kim Shan-young)