When a new 'Vigilante' showed up on the streets, multiple heros tried to capture him. He was a sneaky fellow, always escaping. No matter the hero, he somehow managed to get away without a trace. Multiple heros called him plenty of things; tricky, intractable, tough, unruly, problematic, taxing, worrying, ugly, burdensome, irksome, damaging, dangerous, messy, alarming, inconvenient, annoying, irritating, painful, difficult, vexing. To Aizawa, he was Simply Troublesome.