Maid Kana Nanami, full of service spirit, decided to provide improvement training to a young master troubled by premature ejaculation! She was supposed to improve his condition by stopping him multiple times, but due to her lack of control, she accidentally caused him to climax prematurely! Engaging in fellatio, using an onahole, and even in a restrained state... the intense training heated up, leading not to improvement but to a surefire premature ejaculation and the added bonus of male ejaculation! Being constantly outdone by the natural airhead maid!