Main content: Li Yu and Gui Mu met in high school and spent three wonderful years together as friends. Many sweet stories happened during these three years. They were not lovers, but they never crossed the boundaries of friendship. After graduating from high school, both of them had their own love and life. The relationship gradually faded, but it was still deep in their hearts. The two experienced various ups and downs in college and work, and each grew into a better person. They gradually realized the importance of each other in their hearts, and finally got together after experiencing many difficulties and misunderstandings together. But the illness took away Guimu's life, and Li Yu also died in depression.
Concept: Li Yu and Gui Mu find themselves in emotional entanglement