This time, Special Undercover Investigator Nogi Chiharu's mission is to infiltrate BLACK Ballet Company, which secretly engages in the human trafficking of young girls. However, as Chiharu effortlessly clears the humiliating entrance test, the leader directs a sharp gaze at her... The continuous cruel play of the perverted and wicked beasts, who trample both the pride of the guardian of the law and their well-trained bodies into tatters! After enjoying the stocking ballet cosplay, costume defilement with pleasure, they proceed to torment her nose and nipples, marking yet another nameless grave for a female investigator.