Season 1 poster
Series SeasonSeason 1 episodes2025

Friendly Rivalry

Season 1

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.

Episodes
Each episode has its own detail page.
Episode 1
Episode 128 min2025-02-10

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 2
Episode 231 min2025-02-11

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 3
Episode 332 min2025-02-12

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 4
Episode 428 min2025-02-13

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 5
Episode 526 min2025-02-17

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 6
Episode 628 min2025-02-18

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 7
Episode 728 min2025-02-19

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 8
Episode 833 min2025-02-20

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 9
Episode 933 min2025-02-24

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 1032 min2025-02-25

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 1132 min2025-02-26

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 1228 min2025-02-27

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 1333 min2025-03-03

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 1424 min2025-03-04

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 1527 min2025-03-05

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 1639 min2025-03-06

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.