Nozomi, a high school girl, lives alone with her mother until one day her new stepfather, Ginji, suddenly appears. Ginji is kind and considerate at first, but eventually loses his job and becomes addicted to alcohol. As a result, Nozomi finds herself tasting the forbidden flesh of her stepfather, leading to an increasingly twisted and disturbing relationship. As their bond deteriorates, Nozomi's body begins to undergo strange changes. A shocking story where familial collapse and physical transformation collide.