TV series
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.
Streaming, rental and purchase options
Checked Jul 22, 2026
Friendly Rivalry is available to stream on Netflix, Rakuten Viki, Hoopla, OnDemandKorea, and Tubi in United States. You can also buy it from Amazon. Use the direct links below to open the provider.
A high-teen mystery thriller about a close relationship between teenage girls in a harsher survival competition than entrance examinations.
Choose an episode, then use the watch options above for the show.
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.
Guest stars Lee Eun-ju, Son Young-soon, Park Seong-gyoon
Episode 2
Facing a heartbreaking discovery, Seul-gi struggles to adjust to her demanding schoolwork, while her background makes her a target of bullyng.
Where to watch Friendly Rivalry
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.
Guest stars Oh Eun-seo, Gi So-you
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.
Where to watch Friendly Rivalry
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.
Where to watch Friendly Rivalry
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.
Guest stars Moon Ki-young
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.
Where to watch Friendly Rivalry
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.
Where to watch Friendly Rivalry
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.
Guest stars Gi So-you, Lee Seol-ah, Yoon Chae-na
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.
Where to watch Friendly Rivalry
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.
Where to watch Friendly Rivalry
Episode 12
A traumatic discovery leaves Je-i in a vulnerable state. Feeling uncertain over the situation, a suspicious Seul-gi looks for answers.
Where to watch Friendly Rivalry
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.
Guest stars Yoon Woo-ri
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.
Where to watch Friendly Rivalry
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.
Where to watch Friendly Rivalry
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.
Where to watch Friendly RivalryEpisode information updated Jul 22, 2026
Lee Hye-riYoo Je-yi
Chung Su-binWoo Seul-gi
Kang Hye-wonJoo Ye-ri
Oh Woo-riChoi Gyeong
Kim Tae-hunYoo Tae-joon
Chae Seo-eunJo Ah-ra
Choi Young-jaeNam Byeong-jin
Kim Sang-jiBeom-soo
U+ Mobile TVSouth Korea
YLABSouth Korea
STUDIO X+USouth KoreaMore shows like Friendly Rivalry.
