Chapter 1: Kyouno Souta, who has gone on to higher education in the city, runs into his childhood friend, Harukawa Airi, by chance. Although he has lost touch with her since she suddenly moved away, she still smiles at him as she did in the past. Since then, the two spend a lot of time together. Souta's feelings for Airi grow stronger. However, Souta is told that she has a boyfriend named Takano Nozomi, and through what she tells him, Souta learns the reason why she left him and her relationship with Nozomi. Chapter 2: [spoiler]Nozomi is jealous that his girlfriend, Airi, is getting along with a man she has known since childhood. After a quarrel, they make up and continue seeing each other, but Nozomi begins to feel that something is wrong with Airi's behavior. Could it be that her childhood friend is―? Nozomi then witnesses a shocking scene.[/spoiler] Chapter 3: [spoiler]Airi is now a working adult. She became stronger from her past bitter experiences and cut her hair. She decided to forget the past and seek happiness. However, the past keeps coming back to haunt her.[/spoiler] ―This is the story of Airi and the men who were her lovers.― [Translated from Getchu]