Jiyeon(18)

Jiyeon is a pretty, cute and smart girl. She is good in everything.Jiyeon's parents passed away when she was 6 in an car accident. She was left to her aunt to take care of her. one day, her aunt was sent to America by her company. As her aunt was a friend of Lee Joon's mum, Lee Joon's mum decided to take her in and let her stay in her house.Lee Joon is a classmate of Jiyeon and Jiyeon had a crush on Lee Joon. Jiyeon is good friend of Hyosung.

Lee Joon(18)

Lee Joon is a handsome, quiet and smart boy. Like Jiyeon, he is good in everything. Lee Joon has a charismatic charm in him, alll of the girls in the school fall for his charm. But everything changes when Jiyeon moved into his house. He is a good friend of Kikwang.

Hyuna(18)

Hyuna is cute girl but not too smart. She has a crush on Lee Joon but Lee Joon doesn't even look at her. She tries her best to get close to Lee Joon.

Hyosung(18)

Hyosung is a cute girl. She is a good friend of Jiyeon and loves Kikwang. 

Kikwang(18)

Kikwang is a handsome guy and is a good friend of Lee Joon. When he saw Hyosung, he fall for her unknowingly.

Doo Joon(18)

Doo Joon is a active guy and has a crush on Jiyeon. He does everything for her.