After eight years of marriage, Takanori quits his job and trades stocks at home. When the couple's nightlife was gone and they were living in frustration, his wife brought his mom friend Saiko home. Contrary to her neat and pure appearance, Takanori senses the M nature that attracts men. Since then, Takanori has set his sights on Saiko, who has been coming to the Yatsuhashi family often.
