It's been three months since I lived with my father's new wife, Ayaka. Ayaka is always friendly, but her face, body, personality, everything is so striking that I couldn't treat her well. One day, Ayaka suddenly went to bathe in an attempt to close the gap between me, saying, "It's a parent-child skinny relationship"...! Unable to contain my rationality, I couldn't resist and started slacking off on her plump breasts. As a result, my relationship between me and Ayaka changed completely...