Kana, who lives with her husband, has been spending her days in frustration because her busy husband rarely attends to her at night. On the other hand, Nakano, a university student who is weak-willed and has sensitive nipples, gets an erection anytime his nipples are tweaked—a true sex machine. What kind of chemical reaction will occur when these two meet? The insatiable housewife, having found the perfect target for an affair, relentlessly tweaks his nipples to extract semen, a sex monster of a wife…
