Recently, Akari and her husband have stopped having sex at night, and as a result, she feels increasingly lonely. However, as an outlet to satisfy her desires, she has fallen into a physical relationship with her own son. Even though she knows that it is a twisted love, Akari's desire for pleasure is endlessly overflowing and she cannot control it. And today, as soon as her husband leaves the house, Akari devotes herself to a day of depraved love...