In a famous university, there was a dormitory where the students of that university lived. One day, a new student came to this university. The boy's name was Yeonjun. Yeonjun was a rude and quarrelsome boy, but inside he was kind, but he showed this kindness to few people. Yeonjun was very beautiful and popular even with this new student. Yeonjun looked for an empty room in the boys' dormitory.

But there was no free room for her and Yeonjun had to stay in the girls' dormitory. After a few days, Yeonjun packed her things and went to the girls' dormitory to go to her room. Yeonjun was informed that he has a roommate in the room he is going to His roommate was a girl.