Xia Chenchen is an ordinary high school girl. Driven by curiosity, she and her friend Ding Yi played a popular game on campus - Pen Fairy. As the saying goes, "It's easy to invite the gods, but it's hard to send them away." From then on, Xia Chenchen had a troublesome boyfriend around him - Master Bixian. Racking one's brains every day to get rid of this difficult ghost fairy has become the top priority that drives Xia Chenchen crazy. The war between humans and ghosts takes place every day. In the constant confrontation, Xia Chenchen and the Master Pen Xian gradually developed a strange feeling.