Parents away on a trip... When left alone, my usually cute little sister suddenly changed!? Became super aggressive and came to take my body!! Mitsuki Nagisa
Mitsuki, my stepsister from my parent's remarriage, is a sweet and well-mannered girl who's adored by everyone. To me, she's a proud little sister, and every moment spent with her is pure joy. One day, our parents left early in the morning for a day trip, leaving just the two of us at home. What started as an ordinary day suddenly turned into an intimate, private time together. In the living room, I noticed something strange—Mitsuki, usually gentle and calm, had completely changed. She leaned in with a wet, lustful kiss, drooling as she pressed her lips to mine, then boldly showed me her masturbation. Even in the bath, as she washed her body, she moved with an aggressive seduction, touching me as if possessed—soft yet firm, irresistibly tempting. Confused and unsure how to react, I found myself helplessly drawn into her unexpected actions. This day became an unforgettable, extraordinary moment between us.