Konatsu, a sister who has liked her older brother too much since she was little. One day while their parents were traveling, the brother saw Konatsu masturbating and heard her say 'Onii-chan...' He was caught peeping. Konatsu let him touch her grown breasts and said, 'You can do whatever you like to me, okay?' Unable to resist his cute sister's temptation, the brother…
