A plain-looking girl with short black hair and a uniform has sex with an older man at his house after school. Although she usually has a cool and calm attitude, her sensitive body reacts with a jerk when her nipples are touched, and her pussy gets wet and her face turns dreamy. When her G-spot is stimulated, she starts to overflow with love juices while whispering "I love you... I love you..." in a small voice. Her vagina is also sensitive, and once she starts to cum, she twitches...! Karin-chan has a constitution that makes her cum deeply and convulse, so we'll have 240 minutes of fucking her!