Fan Casting Heroic Self-Deprecation in Sort by Tropes

No matter how much they do for the world or what their loyal friends tell them, this hero is still incapable of believing that they're anything more than useless. Every little mistake leads to a massive display about how it's all their fault and how they're just not good enough. Praise may lead only to Dismissing a Compliment. They're trying to be a Humble Hero, but they're going too far. Sometimes, going way too far.