The male protagonist and the female protagonist met for the first time in a small alley. The female protagonist came to a new class and a new school and found that the male protagonist was in the same class as her. By coincidence, the two became roommates. After getting along many times, the male protagonist was gradually attracted to the female protagonist and chased her crazily. The two went from school to work. However, many years later, the male protagonist had a new love outside and broke up with the female protagonist. He wanted to pursue his wife, but he saw her holding someone else's hand and smiling, and both ended in a bad ending.
Purpose: Because the author himself has not yet had a perfect youth, he wants to use this to express his desire for youth.