True Beauty

Ju Kyung, who is bullied because of her appearance and experiences a painful rejection from someone she has feelings for, considers ending her life on a rooftop before being rescued by Su Ho. After discovering makeup, she changes her appearance and transfers to a new school, where she is suddenly noticed and admired by her classmates.

Su Ho recognizes Ju Kyung from the rooftop when he sees her at a comic book store, but she doesn't seem to remember him. Ju Kyung worries about how Su Ho will react to seeing her at school the next day, only to find that he no longer recognizes her.

Su Ho discovers that Ju Kyung is the same person who frequents the comic store and attends his school, and she becomes worried that he will reveal her secret. To stop this from happening, Ju Kyung agrees to fulfill his demands, though the situation begins to take a significant emotional toll on her.

Ju Kyung is preparing for a blind date and turns to her mother for help at her hair salon. However, her plans are thrown into disarray when Seo Jun unexpectedly enters and sees her without makeup. As she tries to avoid him, Su Ho is competing in a math contest but finds his focus slipping due to his growing concern over Ju Kyung's date.

Su Ho visits Ju Kyung late at night without a clear reason, leading her to wonder if he might have romantic feelings for her. When she invites him out, Ju Kyung reflects on her own difficult experiences at school after witnessing a younger student being bullied for her appearance and decides to step in.

Su Ho's father, actor Lee Joo Hun, visits Saebom High School to meet with Su Ho's teacher, causing a stir among the students. Ju Kyung encounters her former bullies, and Su Ho witnesses the incident and steps in to help her.

Ju Kyung grows increasingly infatuated with Su Ho, but her feelings are complicated when she discovers that he is already interested in someone else, leading her to pull away. As she withdraws, Hyung Jin, a top baseball player from Seonil High, confesses his feelings for her, which elicits emotional reactions from both Seo Jun and Su Ho.

During a school trip, Su Ho is about to confess his feelings to Ju Kyung and buys her jewelry, but she becomes upset, thinking he is interested in Soo Jin. Meanwhile, Hee Kyung is unexpectedly transferred to a different department at work.

Ju Kyung and Su Ho try to keep their relationship hidden at school, resulting in awkward and inconvenient situations as they attempt to maintain a normal routine. Su Ho puts up with embarrassing moments to accommodate Ju Kyung, while Seo Jun wrestles with unresolved feelings after a sudden encounter with her.

Ju Kyung tries to keep her relationship with Su Ho hidden from her friends, particularly as Soo Jin expresses her own feelings for him, leading to tension between love and loyalty. At the same time, Su Ho unexpectedly meets Seo Jun at Ju Kyung's home, where they join her family in making dumplings.

Su Ho learns the truth behind Se Yeon's death and is involved in an accident while leaving his father's office in a rush, with Seo Jun injured while trying to assist him. Both end up in the hospital, where they start to form a connection. At the same time, Ju Kyung and Su Ho recognize their mutual responsibility for a past fight, although Su Ho continues to feel unsettled.

Su Ho returns to school and reconnects with his classmates, while Ju Kyung meets Hye Min, a new student, who asks if they know each other, but Ju Kyung avoids her. At the same time, Soo Jin and Se Mi come to an agreement, and Se Mi gives Soo Jin photos of Ju Kyung without makeup.

A leaked video of Ju Kyung sparks chaos at school, causing her to flee as her past resurfaces. Su Ho remains unaffected by the rumors, concentrating solely on Ju Kyung's well-being, while Seo Jun investigates and discovers a surprising truth about the video's origin.

Ju Kyung returns to school and reconciles with Soo Ah, while the school discovers that Soo Jin was responsible for leaking the bullying footage of Ju Kyung. Ju Kyung and Soo Ho take a trip to the seaside, but Soo Ho leaves his phone behind, leading Seo Jun to desperately attempt to reach him.

Ju Kyung and Su Ho reluctantly agree to part ways, but Ju Kyung is unsettled upon discovering that Su Ho is the boy she met years earlier at Prince Comics. As Seo Jun tries to hide his growing feelings for Ju Kyung and eventually confesses, Ju Kyung becomes increasingly confused and goes to Namsan, where she unexpectedly encounters someone.

Ju Kyung and Su Ho rekindle their bond during a heartfelt reunion, beginning a more mature relationship than the one they had in high school. At the same time, Seo Jun moves on from his unrequited feelings and starts preparing for his debut. Hee Kyung asks Su Ho to include the song "Missing Love" on Seo Jun's upcoming album.