I was expelled from my family. They exiled for three to nine lands, where they had to reclaim their home from rats. And I wasn't a leper or a bastard at all. Just a child with a useless gift. Well, then the Assassins appeared to my soul. I had to fake death and pretend to be a teacher at the imperial academy. And there were already ancient records of a crazy scientist, according to which even I can become the strongest. And revenge. However, does it take power for vengeance if the daughters and sisters of all my enemies are now my students?