Meng Weiji Yi Qiannian

A boy named Lan Xieyi wakes up to discover he has crossed into another dimension and now inhabits the body of a male demon's pet. He is used as a substitute for Bai Yueguang by the original body's owner. Xieyi must navigate relationships with several figures: the Dragon Prince Di Jiang, the cold immortal Liu Yun, the deceptive You Chang, and the phoenix Bi Wu. As he becomes entangled in these connections, Xieyi begins to question his situation and the strange sense of familiarity he feels. He seeks to understand if his experience is real or a dream, and whether he will ever return to his original life.