The main story of this book is that the male protagonist and the female protagonist originally went to the same school for three years, and were in the next class, but they were not familiar with each other. Later, because they both failed in the exam, they both went to another school to repeat their studies. They got to know each other in this school, and as the title of the book tells, there is their previous story.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
