Main Characters: 

Yoon Bomi; 

That kind, smart and popular girl in campus. A very cute girl. She's very hyper and friendly. She's bestfriend with Sungyeol and Eunji, actually she has many bestfriends but these two stays on top. She's known to have amazing talents, such as singing and dancing. But she never showed it because she's too much of a shy person, she gets embarrassed easily. Behind her outgoing personality there hides pain and longing.

Kim Myungsoo;

Known to being the mysterious one. The campus hearthrob. The most handsome one in campus. Smartest Kid on the campus. Bestfriends with Sunggyu since they both think they're cool. Has a secret crush on Bomi. People think he's a bad guy because he looks an Ice Prince. He hates clingy girls but to his surprise, he doesn't hate Bomi and instead finds it a bit appealing. He doesn't like seeing Sungyeol.

Son Naeun;

Know for being the most beautiful in Campus. She's an amateur model. Close with Hayoung. One of the most kindest girls in the class. Loves Science but hates the rest of the subjects. Used to be close with Myungsoo when they were still kids but they stopped talking when they reached High School. Her first love is Myungsoo. She admits to herself that she still likes Myungsoo but she doesn't want to interfere into his present life anymore but she will still support him as a forgotten bestfriend.

Lee Sungyeol;

The most annoying out of the bunch. He acts like he's in grade school. Bomi's bestfriend since Middle School. He has feelings for Bomi but he chose to keep it to himself because he don't want to ruin their friendship. He doesn't like seeing Myungsoo too. Behind his outgoing personality hides the real him. No one knows him more than Bomi. He likes to eat. He's one of the most popular in school for his looks.