The Okamura family's father, a popular designer, is a busy man who rarely takes holidays and is often away from home. One day, his eldest son, Koji, attacks his mother, Mayuko and tries to forcefully rape her. Mayuko was confused and accepted Koji, but it turned out to be a mistake. Koji's desire knows no bounds and becomes more intense day by day until he can't get out of the quagmire. Mayuko