The Hero Corruption Masterplan ~Heroes vs Villainesses~ v.1.1 / ヒーロー堕落撲滅計画～ヒーローVS女怪人～

Justice gives way to anarchy, and chaos reigns over reason...
On a distant planet lies the land of Oristis, constantly tormented by mysterious life forms known as "Villains".
As their attacks became more numerous, a beacon of hope finally emerged. Rheldia's Hero Training Academy.
Here the country's most talented citizens gathered and were turned into weapons of justice to fight the villains.

One day a gigantic explosion is heard not far from the Academy.
However, neither the source of the explosion, nor even any of the destruction could be found.
People found the phenomenon strange, but in time they forgot what had happened.
They did not know that this explosion was the beginning of a chain of destruction that was about to fall upon them...