Symbiosis: Please Give Me Your Body Back

Xuanyang was born with a vicious appearance, which made him seem out of place in school. One night, he witnessed an accident involving a girl, and was forced by a mysterious figure to make a fatal choice... "Are you willing to spend half of your life to save her?" Xuanyang sacrificed his life to save the girl "Meng Qianyu"... But for some reason, Meng Qianyu's personality enters Xuanyang's body every other day──! So a life of exchanging diaries began. Meng Qianyu's personality likes to play pranks, which caused a series of shocking disturbances. However, friendship gradually gathered together, which brought dramatic changes to Xuanyang's originally depressed life! The two of them could only meet each other by exchanging diaries. A youthful story of personality transformation intertwined between "I, whom everyone calls beating" and "her, who is pitiable"!