Airi, who lives in Hamamatsu, has had a secret crush on her paternal uncle for a long time. Her uncle has left his hometown and is living in the city, and he hasn't been back home for over two years because of his busy work schedule. However, she spends her time thinking about him and masturbating to get by. One day, unable to suppress her feelings any longer, she takes advantage of her long weekend to visit her uncle in the city, telling her parents that she's going to a concert...