Ultracreepy girls' horror comic from Japan's supreme master of the genre. Set at first inside a gigiantic, weird mansion, this tale is a story about two sisters. The older one, Kazusa, is the perfect sister, but the younger one, Lisa, is always scorned as inferior in comparison.

One night after fighting with her husband, Lisa goes on a drunk-driving spree and crashes into another car. Fortunately, a mysterious girl named Orochi is there to divert the car enough, so that Lisa's injuries aren't fatal. As a result though, Orochi falls asleep for several decades.

Eventually, Orochi wakes to find that she's being taken into the mansion where the two sisters now live together as older women where the truth gradually emerges where we find out the true nature of these sisters.