I watched the latest installment in the classic female investigator torture and training series, where elite investigator Ami, pursuing a series of missing drug investigator cases, infiltrates the Black Lion Society alone but falls into a trap, is injected with illegal drugs, and suffers unreasonable humiliation while restrained in a bound state. Overall, it was highly satisfying, with the scenes of her shiny, exposed private parts being tormented being particularly exciting, though the depiction of squirting was minimal. The storyline follows the usual pattern: she is easily captured, given aphrodisiacs, stripped naked, made to climax with a vibrator, and ends with 3P or 4P sex, with differentiation relying on the actress's quality and performance. Inagaki Ami's performance as the investigator lacked a sense of resistance and humiliation, leaving room for more tension. Additionally, one male character's dialogue was excessive and grating, ruining the atmosphere of the work, which is regrettable and calls for a review of the script. On the other hand, for navel fetishists, the erotic costume design is delightful, with scenes of fingers inserted and digging into the navel being appealing, but there are too few scenes with the costume on, and stripping it off diminishes its significance, suggesting a need for better balance. The portrayal of an endless pleasure hell, with her body reacting and climaxing repeatedly in a panic state, was impactful, but overall, this is a work that adheres to the classic formula while requiring further innovation in the actress's performance and direction.