Reita Toritsuka enters PK Academy as a transfer student who quickly discovers Kusuo Saiki's psychic powers. As the son of a Buddhist monk, he inherits his family's spiritual lineage, though his parents remain unspecified. His deceased grandmother and grandfather are part of his history, with the latter's ghost actively engaging with him. Standing 177 cm tall with lilac hair and eyes, Toritsuka sports a white headband and Buddhist prayer beads around his neck and wrist, signaling his heritage. His school uniform is worn casually—shirt unbuttoned over a dark blue undershirt, pant legs rolled up, and wooden sandals completing his look. His psychic abilities enable him to see, communicate with, and willingly host spirits and demons. He perceives invisible entities, including Saiki when cloaked. Constantly haunted by spirits, he is guarded by the ghost of Riki Nendou's father. Toritsuka routinely exploits his powers for selfish or perverted goals, like coercing spirits to report on girls' underwear or possessing him to charm women, though these attempts always fail. Overtly perverse, he stalks girls and obsessively pursues romantic attention while craving social recognition, initially flaunting his abilities at school. Despite selfish tendencies, he shows loyalty to Saiki, whom he calls "master" and persistently tries to befriend despite rejection. He openly envies Saiki's X-ray vision for voyeurism. Moments of vulnerability emerge, such as during a three-day Buddhist fast where food desperation overrides his bravado. Toritsuka occasionally assists others despite his flaws: helping spirits move to the afterlife and aiding Saiki in supernatural interventions. He engages socially as lead singer of the band Eternal Diamond Veronica and briefly joins clubs like the Occult Club (as former president) and Tennis Club, though these affiliations typically end in defection or failure. His name forms a linguistic pun: "Toritsuka" from "tori tsukareta" (being haunted), and "Reita" incorporates "rei" (霊, spirit/ghost), directly reflecting his abilities.