Zettai Zetsurin Contest Sekai ni Hitotsu Dake no Mara ♪

An annual festival is coming closer. A few decades after the ED panic that spread all over the world, most men now can't get erection. Fortunately, human beings still exist using artificial insemination. But what about sexual frustration of girls!? They can remove it by masturbation, but they are human beings.... They are never fully satisfied with it! In this festival, boys with big cocks gather from all over the world to compete in various events. You, who are watching this notice.... You might be the one who will win the competition!? We all look forward to your participation!