TV-Series
Description
Mera Raidō is a second-year sports student at Y Academy. Formerly the leader of the School Mafia, he joins the YSP Club after losing to Jinpei Jiba, whom he deeply respects and calls "bro" following Jinpei's offer to help with his tuition. His appearance features tan skin, red and orange hair styled like a lion's mane, a scar on his left cheek, and distinct clothing: a blue jacket with an orange interior (a remnant of his mafia past), black shirt, blue pants, and brown loafers.

Personality-wise, Mera acts rude and aggressive, using threatening voices and poses to intimidate others even as a Yo-kai Hero. This behavior masks a deeply emotional and loyal nature; he never forgets kindness and feels ashamed to reveal his true good-heartedness. After joining the YSP Club, he fights evil Onryo and aliens but maintains a rivalry with the wealthy Ryusuke Kyubi due to his disdain for privilege.

His abilities focus on the YSP Watch for hero transformations. Near his childhood street-fighting mentor, Kazuma Shishiguro, he becomes Shishi O using martial arts. Near an Onryo, he transforms into Yami Shishi O. Using the Majin Watch near Snartle allows him to become Namahage O.

Key relationships define his arcs. His foundational bond with Kazuma stems from childhood rescues and training. Within the YSP Club, his initial antagonism towards Sandayu Koma and Mataro Tamada evolves into camaraderie, and he eventually respects Mataro's growth into Shining Boy and T-Dine. His rivalry with Ryusuke involves frequent clashes but occasional teamwork. A younger sister, Hinoko Raido, revealed in episode 10, explains his protective instincts.

Character development occurs through episodic actions. Early episodes show comedic fights, like a classroom brawl using cleaning tools. Vulnerability surfaces in moments like accidentally wearing his sister's underwear, highlighting awkwardness beneath his tough exterior. Later episodes see him fighting alongside reconciled former mafia allies like Nozuchika Mitsumatagi and Chiaki Hebiyama.

Beyond the anime, Mera appears as a playable character in *Y School Heroes: Bustlin' School Life* and *Inazuma Eleven SD*, where his profile describes him as "foulmouthed but passionate." He is the human reincarnation of the Yo-kai Blazion, explaining his fiery traits and design parallels.