Jiang Che is the "insulator" in the school. He lives alone and is as hard to get close to as the deep sea. The transfer student Su Nian is the little sun in everyone's eyes, warm and bright. She persistently wanted to get closer to the sea, but was pushed away by the cold waves time and time again. Everyone said that she was consuming herself, but Su Nian said: "If you are destined to be the sea that suffocates me, then I will learn to breathe with gills in your world."