Fat, ugly Fukushima Mitsuru has fallen into debt because of his love of cosplay. He encounters the dead body of Fukushima Mitsuko, a female teacher with a name and face just like his while attempting to commit suicide in Mt Fuji’s Jukai. Furthermore, Mitsuko seems rather rich from the things she left behind. So Mitsuru begins a new life dressed as a female high school teacher as if possessed by Mitsuko’s spirit. However, the environment at her workplace is like a painting of a scene in Hell where the worst delinquents run riot, acting as if it is nothing to kill each other. The good-for-nothing Mitsuru looks for the opportunity to escape, but for some reason ends up rehabilitating students due to an accidental misunderstanding … … And then there is another problem that Mitsuru cannot avoid. It is the “female teacher” he appears to be. If he is exposed as a cross-dressing male, no one knows what will happen. And yet, he is a fine man with sexual desires and dirty-minded fantasies every day.