Xiao Nanzhu, an ordinary young man, returned to his hometown and accidentally inherited a magic book called "Qiankun Calendar" left by her grandmother and her former profession, Li teacher. Through the Qiankun calendar, the calendar gods transformed from traditional festivals appeared in front of him: New Year’s Eve, Xiaonian, Lantern Festival... to expel evil spirits and protect the world. As a calendar teacher, Xiao Nanzhu is aware of the evil evil spirits’ harm to mankind. As well as his own duties, he chose to join hands with the calendar gods to fight against various evils. In the process of confronting evil spirits, it seemed that a huge conspiracy gradually appeared and enveloped the entire world. Xiao Nanzhu discovered that the calendar god "New Year's Eve", which appeared unusual from the beginning, seemed to have an unknown secret...