Arataka Reigen runs the Spirits and Such Consultation Office as a self-proclaimed psychic and mentor to Shigeo Kageyama. Academically above-average in school, a childhood incident saw him forget to tell his parents about a sports day, leaving him without food. He later wrote a student essay expressing a desire to change the world, which was made public after a scandal. Before founding his consultation business, he worked as a salaryman but quit to become an entrepreneur. He first met Shigeo when the boy sought advice on controlling psychic powers; witnessing these abilities, Reigen hired him. Reigen typically wears a dark grey suit with a pink or black tie, but has also appeared in a sweatsuit, tank top with shorts, and a complete high school girls' uniform, the latter revealing relatively hairy legs. He displays highly expressive facial features and often sweats profusely. Personality-wise, Reigen shows few reservations about manipulating clients, adversaries, allies, or spirits for advantage, though he later feels guilt over exploiting Shigeo. He maintains composure in most situations and avoids admitting mistakes. During confrontations, he frequently confounds opponents by announcing one action while performing another. Despite his deceptive profession, he operates on the principle that harming others is wrong—a lesson he repeatedly imparts to Shigeo. He possesses significant social and emotional intelligence, capable of analyzing psychology and offering advice that improves individuals, such as former Claw members. His perceptiveness allowed him to see through the evil spirit Mogami's deception when other espers could not, noting inconsistencies in speech. Lacking genuine psychic abilities initially, Reigen employs "techniques": Salt Splash (throwing ordinary salt as a distraction), Sorcery Crush (a massage alleviating physical discomfort presented as spiritual cleansing), and Graphic Exorcism (photo editing to remove spirit imagery). He takes his profession seriously, ensuring client issues are resolved through practical solutions like attentive listening or massage, often offering refunds for unsatisfactory results, driven by both integrity and practical necessity. His relationship with Shigeo evolves significantly. Initially viewing the boy as an assistant for exorcisms, Reigen develops genuine care, advising against misusing powers and emphasizing humility. He intervenes during conflicts involving powerful adversaries like Claw, prioritizing Shigeo's safety—even confronting their leader, Toichiro Suzuki, unarmed despite lacking defenses. However, dependency strains their relationship; Reigen's fear of loneliness manifests in pressuring Shigeo to prioritize work, culminating in an explosive confrontation that causes Shigeo to leave. This separation forces Reigen to confront his reliance and reevaluate his life. A pivotal development occurs when a televised exorcism attempt exposes Reigen's fraud, destroying his reputation. At the resulting press conference, he reflects on his history with Shigeo, acknowledging their meeting gave him purpose during uncertainty. Publicly admitting his deception and affirming Shigeo's growth, he reconciles with the boy, who affirms Reigen's inherent goodness despite his flaws. Following these events, Reigen continues operating Spirits and Such with greater authenticity, incorporating community service alongside consultations. He hires former Claw esper Katsuya Serizawa as an employee, expanding the business. His mentorship persists as he advises Shigeo on navigating adulthood, emphasizing personal fulfillment need not align with conventional careers. The spin-off manga "Reigen" depicts his ongoing activities. During Claw's global domination plot, Reigen demonstrates leadership by organizing esper resistance and personally facing Toichiro Suzuki. His lack of psychic power becomes an asset against teleportation-based opponents who cannot detect him. He reiterates his core philosophy to Suzuki: psychic abilities do not confer superiority, and true significance comes from contributing positively to others' lives.