My older girlfriend Sakura has a lot of experience, so she takes the lead in sex and is a good match for my modest personality. One day, I find a homemade sex video that Sakura forgot to delete on her phone, and I realize from the strange excitement that I have a desire to be cuckolded. I confess that I want to be cuckolded officially, and Sakura initially refuses, but for my sake, we go to a hotel together with another man, and watch the whole thing over a video call. It was supposed to be a one-time thing, but I can't forget the jealousy and excitement, and I ask her again, driven by my sexual desire...