
Forget about lust! This is a wild experiment by science club geeks obsessed with the mechanics of female pleasure and incontinence. New teacher Miyuki Arisaka volunteers, but her body keeps reacting too sensitively to record data properly. The solution? Restrain her completely. Tied up in various positions, Miyuki hits her peak repeatedly, losing control of her bladder every single time. It looks like the faucet between her legs is officially broken.










She orgasms from the vibrator, the wand, hand stimulation, then they change the restraints and she orgasms from a test tube, then the vibrator again, then the actor's member. And then she orgasms from the wand again. It makes you worry if she's okay. I got to see something pretty impressive.
The flow from the abandonment in the final act to getting caught by the head teacher was disappointing. It would have been better if they showed her exhausted in the morning after being left alone, or perhaps experimented with the results of that abandonment. I think the ending would have been better if it wrapped up by showing the experimental process, like a 'trial enrollment' for a new student.
Miyuki-chan, with her cute and sensitive body, had her sensitivity heightened by the restraints, leading to non-stop squirting, incontinence, and multiple climaxes. A very satisfying watch.
I didn't need the part where she gets caught by the vice-principal or whoever in the second half. It would have been better if she were left behind by the students, exhausted until morning, and then taken advantage of by a janitor or a young teacher arriving early. It's a shame the second half went in a completely unrelated direction.
The plot is all over the place, but I've been bored with all the generic lovey-dovey stuff lately, so this was actually a nice change of pace! If you're a fan of Arisaka-chan, you'll be satisfied.