TW: content for masochist men, femdom, erotic humiliation, small penis humiliation, group sex, cuckoldry, etc. --- "If you can hold off cumming for five minutes, I'll have sex with you~ ♪" Kaede, Satoru's first girlfriend, looks pure on the outside, but inside she is a very sadistic person with a special sexual fetish. I want my beloved boyfriend to depend on me...! So I started a "pleasure endurance game." If he can hold off, I'll have sex with him, and I'll give him a prostate massage and a foot job... Satoru, who is still a virgin, continues to have a difficult time, and eventually his mind reaches its limit...