Izuku Midoriya, hero name Deku, grew up Quirkless in a society where superhuman abilities defined status. Childhood bullying from Katsuki Bakugo, who weaponized the nickname "Deku" to demean him, failed to extinguish his dream of emulating All Might, the world’s greatest hero. A fateful meeting with All Might shifted Midoriya’s path when his instinctive bravery—risking his life to save Bakugo from a villain—earned him the chance to inherit the transferable power One For All. Ten months of grueling physical conditioning prepared his body to receive this legacy, securing his admission to U.A. High. Early use of One For All shattered Midoriya’s limbs due to its volatile energy. To mitigate self-destruction, he engineered Full Cowl, channeling the Quirk’s power evenly through his body. He pivoted to leg-focused combat (Shoot Style) to spare his arms, later unlocking dormant Quirks within One For All: Blackwhip’s tendrils for capture, Float’s levitation, and Danger Sense’s preemptive alerts. Each ability demanded tactical adaptation, expanding his versatility in battle. Midoriya’s defining trait—self-sacrificial resolve—drove him to shield others regardless of cost. He intercepted Overhaul’s abuse of Eri, faced Shigaraki’s decay, and even extended empathy to foes like Lady Nagant, probing their pain beneath their violence. When All For One’s war targeted U.A., Midoriya exiled himself to protect classmates, adopting a detached, battle-worn demeanor until their intervention reminded him that heroism thrives on trust, not solitude. His body bore the toll of heroism: scarred hands, fractured limbs, and evolving costumes mirroring his growth. Initial green jumpsuits honored All Might; later upgrades integrated support gear like shock-absorbing Mid-Gauntlets and air-propulsion gloves. Post-war attire adopted Gran Torino’s cape as a scarf and muted tones reflecting hardened resolve. After the Final War stripped him of One For All, he returned to Quirklessness, teaching hero history at U.A. before allies’ technology resurrected his active duty. Relationships shaped his evolution: Bakugo’s rivalry matured into mutual respect, sealed by shared apologies; All Might’s mentorship balanced power with responsibility; Ochaco Uraraka’s compassion reforged "Deku" into a badge of resilience. Classmates like Shoto Todoroki bolstered his resolve, while his analytical mind—documented in hero journals—turned strategies into victories. Midoriya’s arc transcends power. Though stripped of One For All, he reshaped hero society through teaching and technology, proving that courage and compassion outlast raw strength. His journey from sidelined fanboy to hope’s symbol hinges not on Quirks, but on an unbroken will to lift others—even when broken himself.