Possessing a miraculous body with huge breasts, an erotic ass, and unprotected three-beat rhythm, this super-slutty mature woman is said to be able to make any unresponsive penis ejaculate. Her legendary vaginal strangulation device, which caused a sensation in the industry, features the strongest tightening muscle in her vagina. Ms. Mamiko, 38 years old, BEAF-179

Known in the sex world as the "vaginal strangler," Mamiko possesses the most powerful vaginal muscles. Because it's so tight, it's said to be able to instantly kill any man—a living legend. To verify this rumor, doujinshi AV director Aisuman begins his investigation!! He prepares a male actor who can control his ejaculation with his own will, and then begins filming!! With her J-cup breasts and incredibly lustful nature, Ms. Mamiko, true to her Kansai roots, has exceptional communication skills, completely dominating from the start… Her oral and breast-playing techniques are also professional-level. Upon penetration, it truly lives up to the rumored level 99 or higher—the strongest vaginal pressure muscles and clitoris, leaving her only able to defend!! What will the outcome be…?