That monster――Immeasurable. Senei Academy, the only educational institution capable of granting supernatural abilities to people. The ability possessed by Yuuto Amamori is 【The ability to worsen eyesight】――that overly weak ability is just camouflage to hide his true strength, as he was a special existence possessing the strongest ability even before enrollment!? Silently planning schemes to eliminate obstacles without anyone knowing――. The tale of a monster acting incompetent, controlling the academy from the shadows, begins!