In the summer when she was seventeen, Nan Yi was happily together with Niu Jiayu. They held each other's hands tightly and stubbornly refused to let go. Later, he let go and she had no choice but to let go. Their promise also passed with the passing of that summer, and the inextricable longing flooded her like a tsunami...
Concept: Most of the love on campus in reality never ends, but there are always people who find it difficult to let go.