There is an Assassin called Asashi who's looking for talented kids who can fight in different schools and hire them to move to a Assassin school called "Death Academy". The assassin has found many kids in different schools all around the world and trained them.
A Few Years Later
A kid that's been found in Apex University called Koroze, and his talent of fighting schocked the Assassin teachers cause he can defeat 10 Assassin Teachers all by himself in just 2 minutes, then he got sended to the most greatest Assassin or Asashi then made them duel and just by a few minutes Koroze trapped Asashi in a cool move using strings that are attached to sharp needles and Asashi declared a loss for him and the Assassin Teachers are amazed with Koroze because he made Asashi commit a loss. And then Asashi announced that Koroze as the Rank 1 Assassin of Death University.