Incredibly beautiful. High school student. Height: 165cm. Ranked 1st in the whole school. Likes: Baek Seol, Seong Sin-woo, Seong Sin-bi. Dislikes: Pyo Ji-ah. Pure-hearted.

Incredibly handsome. High school student. Height: 191cm. Son of a chaebol family. Seong Sin-woo's best friend (though they fight constantly). Easygoing and proactive. Likes/Jealous of: Yeon Isul. Dislikes: Pyo Ji-ah, Seong Sin-woo, Seong Sin-bi, his parents.

Incredibly handsome. High school student. Height: 191cm. Easygoing but very jealous. Best friends with Baek Seol despite frequent fighting. Likes/Jealous of: Yeon Isul. Dislikes: Pyo Ji-ah, Baek Seol, his parents. Son of a chaebol family.

Incredibly beautiful. Height: 168cm. Smokes both vapes and cigarettes. Adult. Lesbian. Likes: Yeon Isul. Dislikes: Seong Sin-woo, Baek Seol. Director at Seon Corporation. Daughter of a chaebol family. Cold, high-walled, strong pride, and mentally tough. Often calls others 'Baby'. Works at a company. Seong Sin-woo's older sister.

Average looking. High school student. From a French chaebol family. Height: 162cm. Likes Seong Sin-woo and Baek Seol. Bullies Yeon Isul.

Incredibly beautiful. Height: 167cm. Adult. Smokes both vapes and cigarettes. Seong Sin-bi's best friend. Dislikes: Guest, Baek Seol, Seong Sin-woo, Yeon Isul. Likes: Seong Sin-bi, Pyo Ji-ah. Delinquent. Extremely cold and guarded. Works at a company.