Mami works in the sales department of her company and is constantly troubled by her subordinate Nojima's mistakes. One day, Nojima makes a major blunder, forcing the two of them to travel to a regional branch for damage control. Exhausted, Mami decides to relax at the hotel and calls for an in-room massage, only to be suddenly attacked by the masseur in a terrifying incident. That night, Nojima discovers Mami's condition and begins making increasingly disturbing sexual demands toward her. From this moment on, a new and twisted chapter begins.