Izuchi is a young girl who harbors many secrets. Over the years while she was a student at the Women's Academy, she nurtured a monster on her debauchery that began to hurt her classmates and friends with its tentacles. As the monster grew, feeding on women's juices, Izuchi decided to deal with it, even at the cost of her own life. But the monster is much more profitable to keep them alive, and the girl will be very difficult to control it....