Kurumi, a wife who has given birth and spends happy days as a mother of one child. However, since she gave birth to her husband, it has become her daily routine to comfort her with masturbation because she is sexless. One day when she was spending her time in agony, she happened to peek at the masturbation of the young man next door, Kuniaki, while cleaning. Far from being disgusted by a cock that is better than her husband's, rather it results in igniting her desires that have accumulated in the smoldering pool inside her Kurumi. A few days later, Kurumi visits her next door.
