You Are My Sunshine

Gu Tiancheng's life was dull and dreary until he met Song Xuebin and Cui Xuanhao. The two brought plenty of joy and happiness into the life of Gu Tiancheng, who had no pheromones. On the day they graduated from junior high, Song Xuebin and Gu Tiancheng became a couple. But could things really be that simple? When the former Class Seven monitor transferred into their class during the second semester of their first year of high school, everything changed.

Theme: You are my sun, my only source of light