What episode is the old man in the calendar?

Xiao Nanzhu, an ordinary young man, returned to his hometown and accidentally inherited the magic weapon of "Gankun calendar" left by his grandmother and her former occupation-calendar teacher. Through Gankun calendar, calendar gods transformed from traditional festivals appeared in front of him: New Year's Eve, New Year's Day and Lantern Festival, to drive away evil spirits and protect the world. As a calendar teacher, Xiao Nanzhu, after understanding the harm of evil spirits to human beings and her responsibilities, chose to join hands with calendar gods to fight against all kinds of evil spirits. In the process of fighting against evil spirits, it seems that a big conspiracy has gradually emerged and enveloped the whole world. Xiao Nanzhu found that the unusual calendar God "New Year's Eve" from the beginning seemed to have an unknown secret. "Calendar" was jointly produced by Penguin Film and Shimei Film, with Tencent video broadcast alone, and was adapted from Shi Yang's novel "Huang Lishi" in Jinjiang Literature City.