A/N:Yo everyone Hirolegend here there have been many stories about Union Academy and what not the bullying of the MC so I'll make a little origin behind it comment for you thoughts of it.

Hirolegend34:Long ago before any of the major events in all the show and or games that make Union happen a great battle between the gods happen in a universe isolate for all others existed a universe of evil gods banished by the other gods because of their horrendous deeds waiting to take their revenge they fought each other to become stronger end the end few remained they waged a war on the other gods the battle was so fierce it caused damage to countless universes the battle ended when Omni and Arceus appeared to stop the fight and destroy the evil gods for good or so they though the battle crippled the universes making they slowly deteriorat until the would be nothing left Arceus suggested merging the universes together this create the crossover worlds we all know as Union. Now for the reason behind the corruption though the evil gods were destroyed the hatred transcended into the corruption that festered in the hearts of everyone feeding off their sins until it could fully consume them no one knows of this so they didn't have a way to stop it only death would free them from a completely corrupted state but even in the darkest heart a light still shines that opposes the evil gods.