The story tells that the male protagonist met the female protagonist in high school, and the female protagonist was his first love. The male protagonist cared for the female protagonist very much, but the female protagonist did not care about him that much because of the harm done by his ex. However, because of the kindness of the male protagonist, she began to believe in love and the male protagonist. However, because her ex said something to the male protagonist, the female protagonist felt that she owed the male protagonist, so the two separated, but later, the two reunited a few years later...