Yumi, who lives with her husband in a company dormitory, one day receives an invitation from her boss Kawano to attend a home party. The atmosphere was pleasant throughout, but when Kawano and Yumi happened to leave their seats... they found her husband entwined with the boss's wife. Shocked into silence, Yumi had been aware of her wife's infidelity all along; Kawano, excited by the cuckolding, pushes her down. In this abnormal situation where she is being violated while her husband is with another woman, Yumi's body becomes intensely aroused...
