When a mysterious disappearance case came to light, rumors pointed to involvement by the Kurosishi-kai's Hoshizuka group. Rookie investigator Azusa launched a solo investigation, but her inquiry led her straight into the clutches of a massive criminal organization, resulting in her capture. Subjected to unjust treatment, she was forcibly administered the illicit substance her team had been tracking and exposed to humiliating abuse. Her body plunged into a hell of pleasure, leaving her standing on the brink of despair.