A continuous anal examination under the guise of a medical checkup is forcibly administered by a group of sweaty, aggressive gyaru nurses in white uniforms, turning the patient into their personal practice dummy. Called out to the women's locker room after treatment, the man is surrounded by a squad of pungent, uniform-clad nurses who press tightly against him as he's ordered onto all fours to begin the session. Under strict nurse dominance, the anal training starts with controlled deep-throating, enforced irrumation, and repeated anal penetration. As part of the drill, he's forbidden to react, amplifying his humiliation and masochistic role, left with no choice but to obediently accept each act as directed by the group. Can he endure the lewdness of these nurses who coldly and mercilessly carry out their procedures on him as a mere practice subject? Overpowered by the suffocating stench of sweat-soaked nurse uniforms, his suffering intensifies as he's treated like a lifeless doll, subjected to increasingly depraved acts with no chance of escape. Is this medical training—or patient abuse? This controlled anal treatment gradually transforms into a brutal display of group domination, with the nurses maintaining absolute control.