Determined to uphold justice, rookie detective Tsumugi Narita conducts a solo investigation into the Morioka faction of the Black Lion Society. She infiltrates AJITO Building, only to be met with a nightmare waiting in the shadows. Captured and forcibly administered the very illegal substances she was investigating, Tsumugi is driven into a hell of humiliation and pleasure. Despite her strong pride, she is repeatedly brought to orgasm against her will, her mind and body slowly breaking under the torment. What fate awaits her?