Aizawa has been married for six months. She says she enjoyed happy days at the beginning of their marriage. However, her husband's busy work schedule meant he came home late and they talked less. As their days went by, she began to feel empty and anxious. Then, one day, she bumped into her ex-boyfriend in town. It brought back memories of their school days and brought back memories of their youth. The two quickly became closer, and they realized they had only just met once...