Samurai Calibur, a Neon Genesis Junior High Student and Hyper Agent allied with Gridman, presents a hunched silhouette with medium-length black hair veiling part of his face, piercing blue eyes, and faint stubble. His disheveled appearance pairs with a gray shirt, loosely fastened tie, black jacket adorned with a violet emblem, and matching pants. Four katana blades rest on his back, morphing into jagged, steel-slicing weapons when drawn and merging into dual colossal swords for heightened lethality. Eccentric and socially uneasy, he navigates spaces with unorthodox grace—colliding with doors or traversing rooftops. A habitual stutter punctuates his casual speech, vanishing in moments of gravity. Beneath his quirks lies a thoughtful core: he serves tea to Rikka Takarada upon learning her aversion to carbonated drinks and attentively hears her worries. He staunchly believes in redeeming his rival, Anti, championing dialogue over violence even as peers urge force. Combat showcases his superhuman agility, strength, and reflexes, whether darting across rooftops hauling allies or shredding airborne debris to shield them. His blade mastery overwhelms foes like Anti in prolonged clashes. Technical prowess complements his brawn, evidenced by upgrades to the Junk computer that amplify Gridman’s power—a skill shared with fellow Hyper Agents. Transforming into the Assist Weapon Gridman Calibur, his form shifts color and function to suit allies: an axe for Powered Zenon, a crimson-and-black guise for Gridknight. His combat repertoire traps enemies in dimensional rifts before unleashing rapid slashes, culminates in energy-driven final strikes, and synergizes with teammates’ assaults. Across narratives, he rescues Hime Kuzuki from a truck collision, gifting her a blade linked to a smartphone app that unlocks her transformation ability. Their bond in *Hime to Samurai* lets her detect concealed monsters and join battles. In the core series, he observes amnesiac Yuta Hibiki, disrupts kaiju onslaughts, and confronts Anti and swarming threats. His arc concludes by fusing with Gridman’s true form via an Acceptor device, departing for the Hyper World. Originally wielding five swords, he retains four after bestowing one upon Hime. Voice dramas whimsically cite his age as 33 and affinity for cats, though his secrecy shrouds these claims. Design elements homage Transformers and Gridman’s legacy, echoing the storied Gridman Sword.