Season 1

April 17, 2026

Eui-ju is a quiet student by day and a bold romance writer by night. Her future seems uncertain as the man she wronged becomes her homeroom teacher.

April 17, 2026

A sweet scene between teachers ignites Eui-ju's creativity. She casts them as leads in her new novel. During PE class, Gi-jeon makes her heart skip.

April 17, 2026

Eui-ju hides Woo-su's glasses after stepping on them by mistake. Given his demerits and tough task, she trashes them, thinking he's picking on her.

April 17, 2026

Once she realizes the glasses were special, Eui-ju digs them out of the trash but still gets a detention. She posts her F4-inspired web novel online.

April 24, 2026

We Were Friends" goes viral. Riding the high, Eui-ju writes the steamiest cliffhanger yet, unaware someone is standing right behind her.

April 24, 2026

Woo-su demands she delete everything. Now forced to write the novel on his terms, Eui-ju hits a wall. Meanwhile, the principal has plans of her own.

May 1, 2026

On the EBC filming day, Da-ju urges Eui-ju to film Woo-su's class secretly, but she gets caught. She collapses and Woo-su carries her to the hospital.

May 1, 2026

Eui-ju wonders why Woo-su allows her to keep writing her novel. One offhand remark from him sets her heart racing.

May 8, 2026

As Eui-ju denies Woo-su's words made her flutter, a Fields Medal winner visits him. Misunderstood as liking Dong-ju, Eui-ju grows awkward with Go-ya.

May 8, 2026

Feeling inadequate, Eui-ju writes Deul-i as a villain in her novel. Woo-su considers a research proposal in the US, and the prospect makes Eui-ju sad.

May 15, 2026

Ji-a is captured by loan sharks. Woo-su gets in trouble trying to rescue her. Just as things look hopeless, someone arrives to save them both.

May 15, 2026

Dong-ju's secret is revealed. Eui-ju reconciles with Go-ya, and encouraged by her advice, decides to confess feelings.

May 22, 2026

Eui-ju's hesitant to confess. She realizes she's just a student to Woo-su. When Ha-su discovers her novel, her heart races with fear of being exposed.

May 22, 2026

The entire school finds out about the novel. Word reaches Young-hee, and Eui-ju must bring her parents to school. She tells her parents the truth.

May 29, 2026

Eui-ju is crushed after seeing how well Woo-su treats Deul-i at her guest lecture. After class, Eui-ju poses a life-defining math problem to Woo-su.

May 29, 2026

Eui-ju rushes to the hospital after hearing that Woo-su had eye surgery. She finally learns the truth behind the promise made ten years ago.