Riki Nendō stands out as a high school student with a muscular build, shaved head, and a modified uniform reflecting his delinquent aesthetic. Though his stern demeanor and rumors of past brawls initially paint him as threatening, he defies expectations with a sincere, kind-hearted nature. Raised in a family tofu business, he diligently handles deliveries, balancing school life with a steadfast commitment to his responsibilities. Academically challenged and prone to literal misinterpretations—a quirk that sparks frequent humor—he compensates with sharp emotional intuition and fierce protectiveness toward friends. He adopts the protagonist as his unwitting "buddy," offering steadfast camaraderie despite remaining unaware of the latter’s psychic powers. His past as a middle-school brawler, driven by a craving for recognition, shifted when his grandmother’s plea for nonviolence spurred him to abandon aggression. This choice isolated him from former peers but anchored his resolve to embody kindness. Years later, he mends ties with a childhood friend through dialogue, proving his belief in respect over brute force. Evolving through the series, Riki bridges his rugged image with a nurturing spirit, channeling his strength into baseball and de-escalating conflicts as an unlikely peacekeeper. His journey underscores the quiet resilience of choosing empathy, even when met with skepticism or lingering stereotypes.