Lee Hayi has one goal for her second year of college: be invisible. Last year’s all-party-no-study strategy resulted in three failed classes and two criminal charges, and if she messes up again she’ll lose her scholarship. But there’s one problem with her plan for invisibility, and his name is Jung Jaehyun: infamous party king, general hellraiser…and her new roommate’s best friend.

Song Mino misses Lee Hayi so much.

Mino and Hayi have known each other for years. But that doesn't mean they get along well, though.

My name is Hayi. He doesn't call me that, though. He would never refer to me so informally, if he referred to me at all. No, he'll barely even speak to me.But he still won't leave me alone.