From Anibebe:

For centuries the Lee and Dai had shared a deep bond in the form of a master-servant relationship which gradually evolved into a strong friendship between the heirs of both families. Therefore true to tradition Dai Xiaodao (aka Dai Xiaoshuang) decides to assume the role of the manservant for Li Qingri (aka childhood friend) in place of her dead brother, Dai Dadao.

To her chagrin, pretending to be a boy was but the tip of the iceberg in terms of the list of challenges that would come her way. On top of having to contain her secret love for Li Qingri who has become her roommate... what's the deal with that sinister-looking senpai (who's always flashing some fish at her) and that sweet-looking female classmate (who's really a carnivore in herbivore's clothing)!

All that aside, what was that mysteriously beautiful scent that Dai Xiaodao got a whiff of when she bumped into the notorious Ye Weien at that secret path? Surely, no matter what the legend says, that obnoxious playboy could not be the man of her destiny!