Reigen boldly titles himself the "Greatest Psychic of the 21st Century" but lacks any authentic supernatural gifts. His consultations depend on charisma, manipulation, and tangible skills: expert massage therapy rebranded as "Sorcery Crush," photo editing to remove "spirits" called "Graphic Exorcism," and hurling common salt dubbed "Salt Splash." He sometimes deploys improvised martial arts moves like the "Anti-Esper Dropkick" or "Cheeseburger Tornado," with mixed results. After temporarily merging with Mob's powers during a conflict with the Claw organization, he gained the ability to see spirits, which he dismissed as unimportant. His personality blends shrewd opportunism with unshakeable principles. He readily deceives clients, allies, and spirits for profit, yet maintains a strict no-harm policy and insists on resolving issues through practical services, even offering refunds for poor results. He exhibits high social and emotional intelligence, frequently dispensing insightful life advice. This is central to his mentorship of Mob, where he emphasizes that psychic powers don't confer superiority, advocating instead for humility, ethical behavior, and the validity of fleeing conflict. His guidance aids Mob's personal growth and power management. Reigen's dynamic with Mob evolves significantly. Initially exploiting Mob's powers for business while paying minimal wages, he becomes genuinely protective, risking his life against threats like Claw's leader despite his powerlessness. This dependence breeds emotional volatility; when Mob forms independent friendships, Reigen reacts with a manipulative outburst, causing a temporary rift. This separation forces Reigen to confront his loneliness and stagnant adulthood, reflected in his sparse apartment and a birthday acknowledged only by a critical email from his mother. During this time, he briefly integrates community service into his business model. Public exposure as a fraud on television devastates him, but reconciliation with Mob—who affirms Reigen's core goodness—solidifies their bond. In the spin-off manga *Reigen*, he continues running Spirits and Such, refining his role as a consultant who combines pragmatic solutions with his signature blend of deception and sincere support. He consistently rejects the idea that psychic abilities grant inherent superiority, maintaining that all people, regardless of talents, are equal and must contribute positively to society.