It should have been hard to tell on the street he was walking down, but even ignorance could only hide so much. He should feel for pity them, but he couldn't, if given the situation, why should ignorance be bad when the reality was even worse. He knew humanity was not without hope. He was not alone in his fight. There is a whole underground world to this world.
Battles probably happens nightly.
Slayers, sorcerers, clerics, paladins, priests, and so on could be found if you knew where to look. He was not alone in the fight, but he fought alone. He had his own way, his own goals, and his own reasons. He had no affiliation, but he was not arrogant. He would seek help if it were ever needed.