Tetsugaku, a young president of a small electrical engineering company, married Kokomi, who worked in the company's administrative department, and lived a modest life. However, there were people watching Tetsugaku's apartment. One day, when he returned home late at night as usual, Kokomi was nowhere to be found. Then, a suspicious package arrived. Inside was a video of Kokomi, who used to work at Tetsugaku's company, being pinned down by Hirai and others who had forced her to quit due to her poor work attitude, and transforming into a nymphomaniac...