Small and cute Mio Oshima who is surprised by anything. However, in the place where she retreats and thinks, the three seniors are in trouble... The female teachers who want to drive in the perverted, sensitive, and de M traits of each of the perverted, sensitive, and super-masochistic girls who are trembling and scared are re-educating them without any sloppiness. enforcement. Mio-chan's appearance becomes more and more strange with the pleasure that she has never tasted before.
