Crossover The Impossible Game (Sword Art Online SI)

100 Floors? Try 1,000. 10,000 players trapped in a death game? Try 10,000,000. Do you think you'll be freed in a few years? Maybe in a few decades. A game that should be unbeatable - the impossible 'Sword Art Online.' Well, it would be impossible, if not for a certain psychopath. The 'World's Greatest Gamer' will have you all out in no time! (Harem) (Crossover Characters)