She's so horny that she can squirt on her own. Her big tits and ass are so big that they burst out of her uniform! At first glance, Kosaka seems shy and innocent, but when you talk to her, you'll find that she's a girl who loves sex. She says that she masturbates every night at home with a vibrator and cums over and over again. She learns how to use her hips from adult videos, and once she starts to feel the sensation, there's no way to stop.