Jugyeong Lee has never been very pretty, and because of this, life at her school can be very hard. But everything is about to change when she discovers the power of makeup-and meets a new boy.

After running into Lee Su-ho at the comic book store, Joo-gyeong fears her secret will be exposed. She later recognizes a familiar face at her school.

Afraid of having her identity revealed, Joo-gyeong bargains with Su-ho for secrecy. Han Seo-jun demands his helmet back from Joo-gyeong.

In the midst of a love triangle rumor at school, Joo-gyeong agrees to a blind date. Seo-jun and Joo-gyeong find out that their mothers are friends.

Joo-gyeong decides to use her makeup skills to help out a bullied girl. Later, Joo-gyeong is hurt by Su-ho's sudden cruel behavior.

Su-ho's father arrives at his son's school and causes a frenzy. Joo-gyeong has a tense encounter with her former bullies.

A star baseball player becomes infatuated with Joo-gyeong and begins flirting with her. Joo-gyeong witnesses Su-ho comforting Kang Su-jin.

Su-ho's attempt to clear things up with Joo-gyeong on their school trip doesn't go as planned. Seo-jun continues vying for Joo-gyeong's attention.

Joo-gyeong starts looking for a part-time job. Meanwhile, in order to avoid drama at their school, she and Su-ho begin dating in secret.

Su-jin reveals her true feelings about Su-ho to Joo-gyeong - leaving her conflicted. Joo-gyeong discovers that Seo-jun also works at her new job.

Joo-gyeong confesses the truth about her love life to Su-jin. After being admitted to the hospital, Su-ho and Seo-jun begin mending their relationship.

Joo-gyeong panics after seeing a classmate from her former school at her current school. Su-jin admits her true feelings to Su-ho.

Joo-gyeong's life is turned upside down when her school finds out about her secret. Meanwhile, Seo-jun tries to track down the person responsible.

Joo-gyeong returns to school without any makeup on and takes on the bullies. The school finds out who revealed Joo-gyeong's secret.

After taking time to care for his father abroad, Su-ho gives Joo-gyeong bad news. Seo-jun confesses his true feelings to Joo-gyeong.

Jukyung and Suho reunites as Seojun comes to terms with his unrequited love. Soojin, free from her father's abuse, apologizes to Jukyung. Seojun debut with Suho's song.