Following the contract, they engage in erotic muscle training every night at midnight, but due to a decrease in stamina, completing the full course proves to be challenging. Together with a beautiful trainer, the protagonist strives to complete the full course.

Following the contract, they engage in erotic muscle training every night at midnight, but due to a decrease in stamina, completing the full course proves to be challenging. Together with a beautiful trainer, the protagonist strives to complete the full course.