Tan Mu, a top student, and Qin Shu, a scumbag, originally disliked each other, but due to an accidental placement and a rotten girl class teacher, they became roommates. After a fight, they discovered, oh shit, it turns out that our mother is a best friend who has been missing for many years! Later, they met each other's parents and hung out together. From then on, a pair of gay friends was born!