One day, Mirei's boyfriend asked her to have a friend take a picture of him, but she was reluctant. There's only one reason. My boyfriend ejaculates prematurely and once he cums, he can't do it again that day. As expected, he has an outburst on the day of the photo shoot, and, perhaps because he's embarrassed, leaves Mirei and his friend, the photographer, behind. There's only one thing left for the remaining men and women to do!