Experimental subject Akari Minase, a milf whose ultimate orgasmic spot—the cervix—has been developed through unique stimulation techniques, is given an extra-large dildo designed to reach deep into her uterine entrance. As she pleasures herself, she's quickly driven to intense climax. Following the breakthrough cervical stimulation, a well-endowed male performer enters, shocking her with a cock so massive it reaches her navel. Pursuing ultimate depth, Akari screams with animalistic moans, convulsing in full-body ecstasy. This exclusive release also includes rare making-of footage with special service cuts only available here, allowing viewers to fully appreciate the process behind this groundbreaking work.