In their teachers' eyes, Xu Fan and Cheng Yu are model students.
In their classmates' eyes, they are a bickering pair who are clearly fond of each other.
From middle school through high school, they attend the same school and share the same class. Many people think they will end up together, becoming the perfect couple who go from school uniforms to wedding gowns.
But Cheng Yu's life is forever frozen at the age of nineteen.
Theme: School days and youthful secret love
