In the Special Investigations Division, a unique unit within a special department, stands Akari Yukino—a transgender investigator unlike any other. Deeply involved in solving a case where female investigators had gone missing one after another, Akari was closing in on the truth. However, she fell victim to a despicable betrayal and was captured by the enemy. What awaited her was a heinous torture—connecting a flesh rod directly to her anal passage. Overwhelmed by relentless waves of intense orgasm, Akari was driven to the brink of madness.