Youth is a poem, sweet and beautiful, painful and sad. If meeting is a kind of fate, then separation is also a kind of possession. Li Yuhui was sincere at the beginning of college, but she broke up with twenty days of memories. Faced with the relentless pursuit of her senior classmates, the warm waiting of her male best friend, and the secret sabotage of her roommates, what will happen to Li Yuhui's university?