Young Komori was a virgin. In order to offer her virginity to her first love, she kept her virginity for 25 years. His first love was a girl he met by chance when he was in the first grade of junior high school. But without being able to express her feelings, she moved. Komori travels to Tokyo to find the girl and asks a detective. The detective, who reluctantly accepts Komori's request, discovers that Aiko, a familiar soap lady, is Komori's first love as he investigates.