Friendly Rivalry - Season 1

A set of elite academy practice questions sent by someone-they're exactly the same as today's surprise math quiz at school. Drawn in as if by a spell, Seul-gi heads to Elite Academy. There, she runs into Jae-i. But... can she really trust Jae-i?

Jae-i gives Seul-gi a new school uniform as a gift. Though she was once wary of Jae-i, Seul-gi begins to lower her guard as she sees unexpected sides of her. She makes up her mind to return to the seat next to Jae-i.

After the class president election, Seul-gi grows closer to Jae-i and ends up spending the night at her house, but when she's woken by Jae-i's phone buzzing nonstop and decides to check it, she's hit with a shocking revelation.

A copy of Seul-gi's essay, the only one to receive an A+, is found in her classmates' desks, and while Jae-i gets upset and insists no one read it, Seul-gi, strangely enough, doesn't seem to mind.

Disappointed to learn that Jae-i had an ulterior motive for getting close to her, Seul-gi finds herself nearing midterms. With her medication running out and no prescription available, she turns to illegal means to get more.

Seul-gi rises to the top of the class alongside Jae-i. But when Byeong-jin suddenly shows up and threatens her, she becomes anxious that the drug might show up in her upcoming health check.

While the school festival is in full swing, Seul-gi decides to give trusting Jae-i another chance. Meanwhile, for some reason, Jae-i is desperate to find Do-hyeok's phone. On it, she discovers a shocking video.

After discovering the truth, Jae-i unexpectedly encounters someone in the print room. Meanwhile, Seul-gi, who has been stabbed, is taken to the hospital by Tae-jun, where she witnesses Tae-jun's chilling secret.

Due to the festival incident, the police arrive at the school to investigate, and Seul-gi, the victim, is ironically accused as the perpetrator. As Seul-gi is put in danger because of Ara's predicament, Jae-i makes a choice.