OVA
Description
Sage Date, formally named Seiji Date, hails from an aristocratic Miyagi family descended from the legendary Date Masamune. This heritage dictates his traditional upbringing under his grandfather's strict tutelage, instilling bushido principles alongside rigorous training in kendo, bonsai cultivation, and bamboo flute. While both parents were present, his mother worked long hours as an emergency room doctor, and his father—a police officer and kendo practitioner—married into the Date clan. Sage contends with two sisters: Yayoi, an older medical student whose teasing fostered his discomfort around girls, and the more easygoing younger sister, Satsuki.

Health struggles marked his early childhood, leading his family to dress him in girls' clothing, adhering to cultural superstitions to improve a boy's survival; this period remains absent from his memory. Elementary school brought social isolation when peers recoiled from his pale purple eyes, prompting Yayoi to suggest covering one eye with his hair—a style he permanently adopted. Junior high ignited rebellion; he chafed against kendo's rigid etiquette and accidentally damaged his grandfather's prized bonsai, escaping detection only by replacing it with a tulip. During a kendo tournament, an opponent's attempt to blind him by throwing debris at his exposed left eye backfired due to his hair covering the right eye. Sage's furious retaliation resulted in disqualification and confinement to the family basement, where he discovered the Armor of Halo.

Personality defines Sage as formal and wise, speaking refined Japanese and prioritizing strategy over impulse. He maintains composure yet harbors a deep detestation for deceit and evil, capable of intense rage when provoked. His interests span F1 racing, cycling, and traditional arts, though he actively avoids interactions with girls. Among his fellow warriors, he relaxes marginally but stays sharply focused on their mission, frequently expressing concern for the safety of non-combatants like Mia and Yuli.

Sage's development undergoes repeated trials. Early clashes with the Evil Dynasty showcase his tactical brilliance, seeing through Dais' illusions and rescuing Kento from petrification. Captured during the *Gaiden* arc in New York while authenticating a sword, he endures torture by the spirit Shikaisen and a mad scientist. Forced into nightmares while his armor is weaponized for murder, his subsequent thirst for violent revenge starkly contrasts his usual restraint before he rejoins the collective fight. *Legend of the Inferno Armor* reveals elite driving skills, winning an F1 race at sixteen. The *Message* OVA highlights maturity; facing the spirit Suzunagi and a 300-year-old book, meditation under a waterfall yields a philosophical breakthrough about the armor's dual potential for good or corruption based on intent, guiding him through new challenges like armor decay and manipulation.

He wields the light-based Armor of Halo (Korin). Its primary weapon is the nodachi Korin Ken, featuring a shuriken-decorated hilt. His signature technique, "Rai Ko Zan" ("Thunderbolt Cut" or "Lightning Strike"), unleashes concentrated light projectiles or devastating slashes. The armor's full power awakens during a quest to the Catasota Gulch Pinnacles, cementing his realization that armors serve noble or malevolent purposes depending on the wearer's heart.

Key relationships shape his role: fierce protectiveness towards Ryo, often shielding him from threats and keenly aware of Ryo's leadership burdens; a close intellectual friendship with Rowen, leading them to room together and partner on missions; respect for Cye's compassion alongside occasional clashes with Kento's impulsiveness. His family, particularly his grandfather and sisters, remains a grounding force despite childhood friction.