Kusuo Saiki, a high school student born on August 16, possesses an extraordinary array of psychic abilities: telepathy, telekinesis, teleportation, clairvoyance, invisibility, and transformation. His striking appearance—hot pink hair, pale purple eyes lacking visible pupils, and green-tinted glasses—serves practical purposes, with the glasses preventing accidental petrification. Two antenna-like limiters on his head suppress his overwhelming powers to avert global disasters, though their removal in the series finale briefly strips him of his abilities before partial recovery. His powers emerged prenatally, enabling him to alter his gender at birth before settling as male. By age one, he executed complex tasks; by four, his abilities drew government scrutiny after unintentionally annihilating a nation. Childhood incidents, like inadvertently triggering public chaos, forged his reclusive nature, driving him to prioritize secrecy. Aloof yet selfless, Kusuo initially avoids social bonds but gradually connects with classmates such as Riki Nendou, Shun Kaido, and Kokomi Teruhashi, aiding them discreetly. He masks his genius with average academic performance to blend in. Aversion to indebtedness compels him to repay favors instantly, while tsundere tendencies surface in subtle acts—shielding friends’ privacy or mediating conflicts. Critical weaknesses include a paralyzing fear of insects, especially cockroaches, whose minds he cannot read, and an obsession with coffee jelly, often exploited to sway him. Power limitations constrain him: teleportation demands three-minute cooldowns, transformation lasts two hours, invisibility breaks on contact, and psychometry forces glove use to block involuntary object readings. His arc revolves around reconciling a longing for normalcy with self-acceptance. Early attempts to erase public awareness of his powers shift into reluctant embrace of friendships. A clash with his genius inventor brother, Kusuke, who devises a power-nullifying device, forces him into temporary ordinary life—exposing his reliance on abilities for protection and awareness. Natural adaptation eventually restores his powers, symbolizing acceptance of his uniqueness. Family dynamics further define him: his mother’s warmth tempers his cynicism, while his father’s antics irritate yet trigger protectiveness. Interactions with grandfather Kumagoro unveil a gentler side, defending his father despite their friction. Later, moral dilemmas pit secrecy against using powers for others’ benefit. Epilogues depict a fragile equilibrium between solitude and reluctant camaraderie, culminating in a resolve to safeguard those around him while navigating his extraordinary existence.