We called out to two men and women on their way home from a class reunion and guided them to a love hotel! We proposed an erotic mission of "100,000 yen per creampie" and thoroughly investigated what would happen if we left them alone! Even though they are friends, when a man and a woman who haven't seen each other in a long time are left alone in a love hotel, there is no way they can suppress their sexual desire! Before they know it, they are having continuous creampies until the morning! It wasn't supposed to be like this... Adulterous sex with a classmate who they met again after a long time... A secret one-night relationship that can never be told to her husband or friends is revealed!