Han Jung Suh/you

-pretty

-not so famous

-serious and silent

-only people who close to you know your real side

-secretly in love with kai

-Daughter of Han company

Kim Jongin / Kai

-famous with his cool look

-cold

-only peeople who close with him know his real side

-Krystal's boyfriend

-Son of Kgroup holdings.

Shin Donggeun /Peniel

-your classmate

-clever

-not famous at all

Jung Krystal 

-a kind queenka

-lovable

-Kim Jongin's girlfriend.