The female protagonist has a carefree personality and has many friends. She fell in love with the male protagonist by chance due to some misunderstandings in junior high school.
The male protagonist has a slow-tempered personality and is friends with the female protagonist. He had an affair with the female protagonist due to a misunderstanding in junior high school. The two were ambiguous, but a series of things happened that caused the two to part ways.
Purpose: commemoration