START-305 A mum of one who lives in Tokyo's Sugi Ward and works as a cashier at a supermarket during the day suddenly becomes a cheated wife. When the two cheated on each other impulsively vent their frustrations to each other, they find that their bodies are so compatible that they can't stay apart. Hikari Aozora

Hikari is a mother of one who lives in Sugi Ward and lives an ordinary life. One day, a stranger tells her that his wife and Hikari's husband are cheating on each other. Hikari accepts the man's suggestion that "we should have an affair as well to get revenge." The forbidden sex she has not experienced in a long time is sweet and instinctive... She becomes addicted to the cock that is a perfect match for her husband's.