Xu Dongdong, a seemingly chic female college student, always looks playful and playful in front of others. She is a cute and irritable "little pepper" in the mouth of her friends. She always talks about living in the present and enjoying the present, and never talks about her high school days. One day in her quiet life, Xu Dongdong accidentally returned to the high school days that she had avoided.
Purpose: Use the courage and perseverance of the characters in the novel to face pain to heal the "I" who struggles alone in difficult times.