My Second Wife's Daughter Kokona Hakuto

Kokona doesn't like her new dad. For her mom's sake, she suppresses her complicated feelings and decides to support the remarriage... But the new dad's real reason for marrying her mom was Kokona, the stepdaughter's young, firm breasts. Then one day, Kokona witnesses her stepbrother and stepsister having sex, and her dad shows up to teach her the rules of this house...