Toshio-kun is a boy who lives next door. Suddenly, my mother left the house and my father was to take care of me at my house while I was working. I was confused at first, but my heart was painful by Toshio-kun's lonely expression, so I decided to take my place as my mother. And one day, while he was taking care of Toshio-kun... he was making cookies to get in a good mood, butter spilled on his crotch. I guess I'm sure Toshio-kun, who is so passionate about the butter that he licks around my crotch, is using his intense tongue...