The stepdaughter Riko from his father's new wife came to this house, and the dad was savoring a peaceful happiness. However, such tranquility did not last long. Riko would sneak past mom's watchful eyes, smile, wear see-through clothes, and seduce dad. The dad, experiencing a daughter of that age for the first time, couldn't scold her and ended up falling for Riko's young, taut skin…
