The Heavy Black Mist has been talked about since the day Ervin joined Lightwall Academy. This was just but one of many natural events that Mage Enforcers needed to rise to the occasion and protect the city.
Heavy Black Mist has Demonic Beasts growing dozens of times stronger, becoming more feral than ever before, forgetting all of their spiritual awareness just to kill any human on sight!
Nobody could exactly tell why the Heavy Black Mist came. Or what the Heavy Black Mist is made up of.
But none of that matters when there are ravenous Demonic Beast storming towards the city.
Ervin didn't have the slightest desire to fight for the city. That city was merely just a stepping ground for him, the people there never interested him, there was no connection for him in any place and Ervin was indifferent to the belief of valuing human life.
What doesn't affect his immediate life and enjoyment was simply a second thought.