Drama Mystery
S01E01 • 8.6/10 • 28m • 10 Feb 2025 • KR •

Friendly Rivalry (2025) S01E01 – 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.

Cast

Lee Hye-ri
Lee Hye-ri
Yoo Je-yi
Chung Su-bin
Chung Su-bin
Woo Seul-gi
Kang Hye-won
Kang Hye-won
Joo Ye-ri
Oh Woo-ri
Oh Woo-ri
Choi Gyeong
Kim Tae-hun
Kim Tae-hun
Yoo Tae-joon
Chae Seo-eun
Chae Seo-eun
Jo Ah-ra
Choi Young-jae
Choi Young-jae
Nam Byeong-jin
Kim Sang-ji
Kim Sang-ji
Beom-soo
Lee Won-jae
Lee Won-jae
Woo Do-hyeok
Yoo Jung-Rae
Yoo Jung-Rae
Homeroom Teacher
Kang Jin-ah
Kang Jin-ah
Kwon Hee-yoon
Ma Hyun-ji
Ma Hyun-ji
Park Byeong-hui
Choo Ye-jin
Choo Ye-jin
Yoo Je-na
Ha-min
Ha-min
Principal
Lee Na-ra
Lee Na-ra
Joo Ye-ri Mother's
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Kim Shan-young
Lee Eun-ju
Lee Eun-ju
Nun
Son Young-soon
Son Young-soon
Flower Seller
Park Seong-gyoon
Park Seong-gyoon
Security Guard
Oh Eun-seo
Oh Eun-seo
Young Yoo Je-i

Episodes

Friendly Rivalry (2025) S01E01 – Episode 1 S01E01 28m
10 Feb 25
Friendly Rivalry (2025) S01E01 – 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.
Friendly Rivalry (2025) S01E02 – Episode 2 S01E02 31m
11 Feb 25
Friendly Rivalry (2025) S01E02 – Episode 2
Facing a heartbreaking discovery, Seul-gi struggles to adjust to her demanding schoolwork, while her background makes her a target of bullyng.
Friendly Rivalry (2025) S01E03 – Episode 3 S01E03 32m
12 Feb 25
Friendly Rivalry (2025) S01E03 – 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.
Friendly Rivalry (2025) S01E04 – Episode 4 S01E04 28m
13 Feb 25
Friendly Rivalry (2025) S01E04 – 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.
Friendly Rivalry (2025) S01E05 – Episode 5 S01E05 26m
17 Feb 25
Friendly Rivalry (2025) S01E05 – 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.
Friendly Rivalry (2025) S01E06 – Episode 6 S01E06 28m
18 Feb 25
Friendly Rivalry (2025) S01E06 – 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.
Friendly Rivalry (2025) S01E07 – Episode 7 S01E07 28m
19 Feb 25
Friendly Rivalry (2025) S01E07 – 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.
Friendly Rivalry (2025) S01E08 – Episode 8 S01E08 33m
20 Feb 25
Friendly Rivalry (2025) S01E08 – 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.
Friendly Rivalry (2025) S01E09 – Episode 9 S01E09 33m
24 Feb 25
Friendly Rivalry (2025) S01E09 – 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.
Friendly Rivalry (2025) S01E10 – Episode 10 S01E10 32m
25 Feb 25
Friendly Rivalry (2025) S01E10 – 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.
Friendly Rivalry (2025) S01E11 – Episode 11 S01E11 32m
26 Feb 25
Friendly Rivalry (2025) S01E11 – 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.
Friendly Rivalry (2025) S01E12 – Episode 12 S01E12 28m
27 Feb 25
Friendly Rivalry (2025) S01E12 – Episode 12
A traumatic discovery leaves Je-i in a vulnerable state. Feeling uncertain over the situation, a suspicious Seul-gi looks for answers.
Friendly Rivalry (2025) S01E13 – Episode 13 S01E13 33m
3 Mar 25
Friendly Rivalry (2025) S01E13 – 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.
Friendly Rivalry (2025) S01E14 – Episode 14 S01E14 24m
4 Mar 25
Friendly Rivalry (2025) S01E14 – 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.
Friendly Rivalry (2025) S01E15 – Episode 15 S01E15 27m
5 Mar 25
Friendly Rivalry (2025) S01E15 – 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.
Friendly Rivalry (2025) S01E16 – Episode 16 S01E16 39m
6 Mar 25
Friendly Rivalry (2025) S01E16 – 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.

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