After a class reunion, two friends are invited to a love hotel! Reminiscing about school days, they propose an erotic mission of creampie sex for 100,000 yen per shot. What happens when they're left alone? A neglected married woman with huge breasts starts to get wet in the love hotel atmosphere! Once the erotic switch is turned on, it won't stop! The adulterous sex of married couples burns so intensely that it makes them forget their families!