With my childhood friend Yuta, I'm not a friend or a family member ... Not even lovers. I thought that this kind of relationship would continue for a long time to come. I felt that if I confided in him, this relationship would be broken, so I grew up while hiding my feelings for Yuta, and Yuta got engaged to another girl. On the night I was introduced to my fiancée, Miki, I decided to put a kick on my long unrequited love as I looked at the sleeping faces of the two of them who were drunk and slept together.