My Amnesiac Childhood Friend Is My Classmate

In his second year of high school, Xia Zhiyu transferred up a grade from another school into the class of Shu Yuheng. The familiar plum-blossom scent about Xia Zhiyu, along with a strange sense of familiarity, prompted Shu Yuheng to find a way to make him his desk mate. After they became desk mates, Shu Yuheng noticed that Xia Zhiyu’s pheromones seemed about to overflow. But he was told that Xia Zhiyu had no heat cycle, and Xia Zhiyu denied Shu Yuheng’s question about whether they had known each other before.