Heaven and Earth Xuanmen Colleagues' Past and Present Lives

Gigi is a psychiatrist at Green Water Mental Hospital. Ever since she broke up with her crazy ex-boyfriend and bought an ancient harmonica from a roadside stall, she began to have frequent dreams. The strange thing is that there is no sign of the ex-boyfriend in the dream. Instead, it was a Taoist priest who penetrated her dream for two months. The Taoist priest sometimes called her Miss You, and sometimes called her Miss Shishi. Last night, he even called her Ah Shan. What do these three names have to do with her? And what kind of dispute does she have with him?