The story of two men whose first love ended in vain and finally came together.
"He felt a bit like a goldfish in a glass tank. When Fan Zheng touched him through the glass, he deceived himself by the temperature he imagined. Only when he saw Fan Zheng being intimate with people in the world outside the water did he realize that he was just a fish, without a soul or love."
Modern setting/lower year/main attack/slight spiritual DS, CP is Zhong Yu x Li Zhengcen.