Gui Sheng is an ordinary man who became an immortal by accident, filled with boundless anticipation and longing for the Immortal Realm. During his time in the Celestial Realm, he befriends many immortals with profound cultivation and encounters numerous ruthless, cunning demons.
Gui Sheng is determined to leave the Immortal Realm and return to the mortal world. Only after meeting the woman he loves, Wan'er, does he learn what it means to long for someone day and night, and how a single thought can turn a man into a demon.
He falls madly in love with her. He doesn't care whether it's the Immortal Realm or the mortal world; he only wants to be with his beloved Wan'er forever...