Kaho, an elite beauty aspiring to be a female detective, faces a hellish training regimen orchestrated by her perverted male boss at the special investigation unit. She endures being bound and unable to move, enduring brutal rapes, near-suffocation from agonizing neck restraints, and tickling that drives her to the brink of insanity. After enduring this torment, Kaho finally becomes a submissive female detective, transforming into a masochistic beauty who becomes the boss's willing sex slave, wetting her pussy in service upon mission completion.