A new series set in the "Ejaculation Management Research Institute," with Shiho Egami as the director. Using a special technique involving low-frequency electrical stimulation to control erections, middle-aged men are forced to endure extreme restraint under her supervision. Men are driven to the brink of orgasm through teasing methods like assjobs and grinding, repeatedly pushed to their limits until they ultimately lose control and go mad. The highlight is the cowgirl position orgasm denial, showcasing her big ass in action. Men are brought repeatedly to the edge of climax, forced to endure real, intense teasing that makes them involuntarily buck their hips. The relentless exploration of endurance limits captivates viewers.