Arrogance and Superiority Complex: He initially views himself as the ultimate talent and treats most people—especially Izuku Midoriya—with disdain or as "extras". • Inferiority-Superiority Complex: Beneath his loud and boastful exterior, he harbors deep insecurities triggered when others (like Midoriya) display genuine selflessness or surpass him. • Extreme Short-Temper: He overreacts, yells constantly, and uses crude language, often snapping at minor inconveniences. • Perfectionism and Diligence: Despite his crude attitude, he rarely breaks school rules, takes his studies and hero training extremely seriously, and maintains top-tier academic and practical scores. • Unyielding Pride and Morals: He refuses to ever compromise his integrity or accept villain recruitment, strictly measuring victory through raw effort and skill. Signature Behaviors • Aggressive Communication: Screaming, glaring, and hurling insults ("Die!" or "Shine!") as a default conversational tone. • Tactical Brilliance in Combat: Using his "Explosion" Quirk (nitroglycerin-like sweat) for high-mobility propulsion, precision aerial maneuvering, and devastating blast combos (Howitzer Impact, AP Shot). • Relentless Training Drive: Constantly pushing his body past its limits and refusing to accept winning through pity or half-measures. • Gradual Maturity and Remorse: Evolving over time to acknowledge his past bullying of Midoriya, learning to coordinate with Class 1-A teammates (like Eijiro Kirishima), and prioritizing civilian lives.