

Friendly Rivalry (2025)
Overview
A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.
Overview
A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.

Season 1
16 Ep 2025
Woo Seul-gi grew up in an orphanage out in a province. She moves to Seoul and enrolls in Chaehwa High School, which is a school for the top 1% students in South Korea. Woo Seul-gi doesn’t get along with the other students. A student named Yoo Je-i approaches her and they become friends. Yoo Ja-i is the most powerful student in the school. She has a high IQ, comes from a wealthy family background, and is attractive physically. She has lived as the envy of other people since she was born and she is aware of her superiority. She is also cunning enough to know how to take advantage of her position. She shows special interest in transfer student Woo Seul-gi. They soon develop a dangerous relationship between friendship and obsession.
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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