An immortal woman with a fractured soul keeps meeting the same person across centuries, never quite remembering why he matters until he's standing in front of her again. The show moves with watercolor patience through a world built to feel lived-in and haunted. Every small gesture between them, a glance, a hand reaching, carries the weight of a hundred years she can't access, and that gap between what she's forgotten and what he still holds is everything.

A hundred years ago, the immortal Tian Quan slew the Mirage Lord, and the Mirage Spirit vanished from the land of Cangshuo, but her soul was left incomplete and her memory of the battle lost. Later she comes down to the mortal world to work in Cangshuo and takes in Li Xiao, an immortal pet bird who soon becomes human. His looks and manner remind her strongly of Shao Weili, her lover who has died. Gifted from birth at recognizing hundreds of herbs, Li Xiao travels about healing the sick in her place. When he fails to come home for days, Tian Quan searches for him in Luoyi Town and finds its people slaughtered and the Mirage Spirit back. The two join forces to fight the Mirage and end the town's crisis. As her confused memories return, Tian Quan begins to suspect a link between Shao Weili, Li Xiao and the Mirage she once killed.