The Tree of Thought

The beginning of the story is the peach blossom tree in the yard, and the end of the story is also. Childhood sweethearts, childhood sweethearts. We know each other and love each other, but our lovers never get married. Yun Shu is a doctor, but she was unable to save her lover. He Shu is a psychiatrist, but he can't help his lover out of the haze in his life.