Mikio Shirato

As the brilliant yet arrogant creator of Ace, this engineer developed a cutting-edge Gear capable of using advanced AI to predict and counter enemy movements. Driven by a massive ego, he views talented outsiders like Joe as unworthy competitors. His bitter resentment stems from being denied leadership of the Shirato Group, a position instead given to his younger sister, Yukiko. This deep-seated grudge defines his personality, blending technical genius with a smug, condescending attitude toward those he deems inferior.