That JAV

If it's too hard, I'll torture you now..." "If you are frightened, you can pee naturally, can't you?" This is a human experiment conducted by a research-crazed teacher who blackmailed his student (a schoolgirl) and forced her to do it. All the experiments were filmed. Brainwashing and training to the point of mental collapse. The whole body is restrained and choked and toyed with. A beautiful girl who has lost her thoughts becomes a guinea pig that keeps squirting as she is stimulated.