This instructional porn release targets men who can stay hard while masturbating but lose their erection during partnered sex, often because of stress, fatigue, trauma, insecurity, or fear of failing again. Veteran porn actor Genjin Moribayashi and Azu Amatsuki present practical techniques intended to address erection loss without relying on medication. The program includes a lecture, hands-on testicular-massage training with Azu and a specialist, Moribayashi demonstrating sustained sex with her, and a novice porn actor putting the lessons into practice through fully erect sex. An extra solo masturbation video from Azu is also included. The production presents these methods as instruction, not a substitute for professional medical care.