Enji Todoroki, the Flame Hero Endeavor, rose to prominence as Japan’s No. 2 Pro Hero, driven by an all-consuming rivalry with All Might. His Hellflame Quirk granted pyrokinetic mastery but risked lethal overheating, a flaw that pushed him to orchestrate a Quirk marriage with ice-wielder Rei Himura. Their union aimed to breed a child combining both elements, though their first three offspring—Toya, Fuyumi, and Natsuo—failed his expectations due to incompatible abilities or frail constitutions. Shoto, their fourth, inherited dual fire and ice powers, becoming the sole focus of Endeavor’s ruthless training from age four. The hero’s obsession shattered his family. He isolated Shoto, subjected Rei to emotional abuse until her breakdown led her to scald Shoto’s face, and ignored Toya’s desperate attempts to prove himself. Toya’s reckless overuse of his fire Quirk, despite a body ill-suited to handle it, culminated in a catastrophic accident presumed fatal. Consumed by guilt, Endeavor doubled down on molding Shoto into All Might’s successor, deepening the family’s fractures. All Might’s retirement thrust Endeavor into the No. 1 Hero role—a position that brought no pride, only sobering introspection. He began tentative steps toward reconciliation: visiting Rei in her psychiatric facility, engaging his estranged children, and mentoring Shoto alongside interns Izuku Midoriya and Katsuki Bakugo. During their training, he demonstrated tactical brilliance, refining Shoto’s Flashfire Fist technique while navigating his son’s simmering resentment. A strained family dinner laid bare unresolved wounds, particularly Natsuo’s refusal to forgive Endeavor for Toya’s demise. The Paranormal Liberation War upended his fragile progress when Toya resurfaced as the villain Dabi, exposing Endeavor’s past abuses to the world. Facing his son in battle, Endeavor acknowledged his culpability in Toya’s descent into villainy, choosing to save him over securing victory. The clash left Endeavor grievously injured, cost him his right arm, and cemented his retirement. Confined to a wheelchair with irreversible injuries, he dedicated his remaining years to atonement: supporting Rei’s recovery, financing a new family home, and visiting the imprisoned Toya daily. Publicly confessing his failures, he vowed lifelong accountability. Professionally, Endeavor’s career boasted unmatched case-resolution rates and a sprawling agency excelling in crisis management. His abrasive, efficiency-driven leadership contrasted with All Might’s inspirational persona, yet his strategic genius and combat prowess earned respect. The Endeavor Agency arc showcased his mentorship philosophy as interns independently rescued Natsuo from the villain Ending, affirming his belief in self-reliant heroism. Physical markers traced his evolution: scars from battles, reinforced armor symbolizing his No. 1 status, and finally, bandaged limbs and a wheelchair reflecting his fractured redemption. Each transformation mirrored his journey from relentless ambition to haunted accountability.