For men across Japan struggling with premature ejaculation, the popular "Premature Ejaculation Dick Strengthening Training Camp" series features a different AV actress each time as an instructor, who seriously and gently—yet sometimes provocatively—trains and strengthens weak, quick-shooting dicks. This time, the instructor is Risa Kasumi, renowned for her perfect body. Known for its detailed, intense guidance reminiscent of the most popular educational TV shows, this series is an essential program for any man seeking to overcome premature ejaculation.