Atsushi reunites with his college friend Yuji, who complains that sex with his beautiful, eager wife Minami has become less frequent but still boasts about married life. Frustrated and consumed by lust, Atsushi secretly visits Minami and forces her down. She resists his uncontrollable stamina but still climaxes. After he continues visiting five days a week and creampies her four times each day—a total of twenty loads—Minami finally finds her husband can no longer satisfy her.