Mai-chan, who lives with her parents who produce specialty products in Miyazaki Prefecture, has been secretly in love with her paternal uncle since she was a child. My uncle, who lives in the city due to work, is busy with his daily work and hasn't been back home for a long time, but even though Mai-chan can't see him, she keeps thinking about him and comforts herself by masturbating. One day, when she could no longer hold back her love for him, she told her parents that she had gotten tickets to a professional baseball game and was going to watch it, but since the money was wasted, she would be staying at her uncle's house, and she took a conventional train all by herself and came to the house where her uncle lived.
