Kim Taehyung... a 32 old physics professor at Seoul's Gangnam University… He the youngest and most attractive male professor at that university, and girls like him. But what if he was gay and he is in a relationship with one of his students!?

Jeon Jungkook ( you ) is a boy who doesn't study, is naughty, doesn't attend classes. But you're both attracted to each other...

You came to class late and you didn't even study. Your his sweetheart, but he fought you kicked you out…