Series · 2025 · Mystery
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.
1 season · 16 episodes

Episode 01
Episode 1
After living in a orphanage, Woo Seul-gi transfers to a top-ranking school hoping to find her father - and soon catches the eye of a popular student.

Episode 02
Episode 2
Facing a heartbreaking discovery, Seul-gi struggles to adjust to her demanding schoolwork, while her background makes her a target of bullyng.

Episode 03
Episode 3
Yu Je-i continues to show kindness towards Seul-gi and invites her to her private study space, drawing the two girls closer together.

Episode 04
Episode 4
A furious Choi Gyung becomes suspicious when Je-i nominates Seul-gi as class monitor. Ju Ye-ri overhears a conversation about Je-i's former seatmate.

Episode 05
Episode 5
While Seul-gi finds details of her family history on Je-i's phone, Choi Gyung looks into the connection between the two girls'past.

Episode 06
Episode 6
Students take drastic measures to beat the stress of midterms. Choi Gyung shares a discovery with Seul-gi, causing them to question Je-i's intentions.

Episode 07
Episode 7
Ye-ri makes a deal with Je-i's father, Yu Tae-jun, by using his secret against him. Seul-gi worries about a healt checkup following her exams.

Episode 08
Episode 8
Ye-ri steals Seul-gi's father's phone. As she tries to unlock it, the rest of the students head to the school festival.

Episode 09
Episode 9
An attack at the festival causes panic at the school. Je-i comes to face with a figure from her past as they fight over the stolen cellphone.

Episode 10
Episode 10
As the police investigate the school's drug problem, Seul-gi comes under suspicion. Je-i makes a deal while seeking to help Seul-gi.

Episode 11
Episode 11
Struggling to find Yu Je-na, Je-i decides to frame her for dealing, hoping the police will be able to locate her before their father does.

Episode 12
Episode 12
A traumatic discovery leaves Je-i in a vulnerable state. Feeling uncertain over the situation, a suspicious Seul-gi looks for answers.

Episode 13
Episode 13
While attending a funeral, Seul-gi suspects foul play. Her search foe evidence leads to a grim connection between her father and Tae-jun.

Episode 14
Episode 14
With the help of Seul-gi, Je-i uses hidden cameras to spy on her parents, hoping to find a witness who can assist with the court case.

Episode 15
Episode 15
Je-i and Seul-gi take drastic steps when their ranks slide after a big test. Byeong-jin pressures Choi Gyung into taking pills to maintain her grades.

Episode 16
Episode 16
Leading up to the exam, Je-i and Seul-gi craft a final, defiant plan - but there are high risks for everyone involved.
based on 127 votes
A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.
8 principal cast
Friendly Rivalry is available to stream on Flicksy via 6 verified sources, aggregated from publicly available embed providers. The mystery from Song Chae-yun has 1 season and 16 total episodes, rated 8.7/10 by 127 viewers.
Friendly Rivalry has 1 season with 16 episodes in total.
Friendly Rivalry has ended and is no longer in production.
Friendly Rivalry airs on U+ Mobile TV.
Friendly Rivalry first aired on February 10, 2025.
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