When he first met Sima Xun, Tongtong thought she was a very fair and beautiful older sister. So much so that when she saw him while playing hide-and-seek with her male classmates at school, she pulled him into the women's bathroom. The countless embarrassing things that led to Sima Xun's life from the first to the subsequent ones were all related to Tongtong. . From then on, whenever Sima Xun saw Tongtong, he would hide quickly or run away like a mouse meeting a cat. .