It's been three months since I started living with Ayaka, my father's new wife. Ayaka is always kind to me, but her face, body, personality, everything about her is just too much for me, so I can't get along with her. Then, one day, Ayaka suddenly comes into my bathtub and says, "Let's have some skinship between parent and child" in an attempt to close the distance between us...! Unable to control my reason, I can't help but bite into her voluptuous breasts. From that point on, my relationship with Ayaka changed completely...