Charon stands 202 cm (6'7½") with a muscular frame and light hair, his eyes perpetually concealed behind a blindfold marked by a crimson cross. Clad in a martial arts-inspired uniform, he sports dark fingerless gloves and a belt echoing the cross motif, reinforcing his identity as a guardian enforcer of the White-Clad. Weighing 130 kg (287 lbs), his physique complements his extraordinary resilience, enabling rapid recovery from explosions and slashing wounds without losing combat focus. His demeanor blends fierce loyalty to the Evangelist with a brash, impatient streak, often interrogating allies and foes alike mid-battle. A complex, protective dynamic defines his relationship with Haumea, whom he has shielded since her youth. Their bond mirrors familial ties, with Charon displaying unease toward her suffering and futile attempts to temper her ruthlessness. Though devoted to the White-Clad, he acknowledges adversaries like Kurono who prioritize safeguarding Pillars, valuing their protective instincts over factional rivalries. A Second Generation pyrokinetic, Charon absorbs kinetic energy from physical assaults, transmuting it into thermal bursts for devastating counterstrikes. This power grants endurance against cataclysmic forces, including nuclear detonations, with redirected energy unleashed through claps or stomps. A critical limitation prevents simultaneous absorption and release, exposing brief vulnerabilities during retaliation. His combat mastery merges close-quarters brutality with shockwave-generating strikes capable of reshaping battlefields. For over a decade, Charon has spearheaded critical White-Clad operations. At age 16, he aided Haumea in abducting infant Sho Kusakabe, the Third Pillar, by fabricating a decoy corpse to mislead investigators. Subsequent missions involved securing Pillars like Inca and Nataku, frequently clashing with Fire Force operatives. During the Haijima Industries conflict, he shielded Nataku from Kurono and Company 8, later assisting Shinra Kusakabe against a gargantuan Infernal to preserve Pillar safety—a duty he declares with the mantra "I AM A GUARDIAN." In the Ōbi's Rescue arc, he collaborates with Haumea to manipulate Raffles III into recruiting Leonard Burns, furthering the Evangelist’s schemes. Charon’s final confrontation pits him against Takehisa Hinawa, whose relentless gunfire overwhelms his energy-absorption limit. Forced to expel excess power in a climactic strike against Dragon, the effort ruptures his body, culminating in fatal overexertion. His death underscores both the peril of his abilities and his unyielding commitment to the Evangelist’s cause.