Beautiful sisters Miki and Mari, who run a restaurant. Miki harbors feelings for her clumsy younger sister Mari that go beyond mere sisterly affection. Every small gesture Mari makes fuels Miki's lewd fantasies. Today, while cleaning the restaurant, Mari accidentally breaks a champagne glass after rubbing her slit against a chair leg, prompting her older sister to begin punishment. As a result, over 250 liters of dressing is poured onto a bed of shredded cabbage, leading to non-stop lesbian play between the two.