What is sad. Always knowing the ending is the greatest sadness. When Xiao Mo knew that his mother was about to die when he was six years old, he began to learn to embrace himself and live with a smile. Xiao Mo hates reading books and watching movies, because every time she turns the first page or watches the first scene, she can always guess the ending. She always thought she could only stand aside and watch every ending happen, unable to change it. Until one day, Xiao Mo began to change his life and the outcomes around him.