Alice has been married to her current husband for two years. Her husband had a son, Takashi, who was the same age as Alice. Alice gradually becomes more interested in Takashi than her husband, who doesn't come home much these days. Such Takashi seems to be interested in Alice's buttocks, and begins to touch Alice's buttocks while she is sleeping. Takashi touches Alice, who is overwhelmed with emotion, taking advantage of her husband's absence.
