Rikiya Ryuzaki, a disciplined fourth-grader at Aozora Elementary, dreams of professional baseball while balancing shifts at his family’s ramen shop, where he handles deliveries and operations—a routine fueled by his own love for the dish. His strong sense of responsibility often sparks friction with carefree teammate Kotaro Kirigakure, yet cements his role as Red Ganbar: the Ganbar Team’s steadfast core. Harnessing superhuman strength through his Ganbare Suit, he commands the King Elephant mecha and steps into the Revolger’s cockpit when battles demand reinforcements, countering teammates’ impulsiveness with levelheaded strategy.

A pivotal moment in his journey sees him brainwashed by Yaminorius III’s Dai-Makai forces, twisted into a feral state—only to be saved by younger brother Tetsuya’s intervention, exposing his hidden fragility beneath physical prowess. Beyond combat, his dynamic with Katsura Takeda—daughter of a defense strategist—evolves from bristling disagreements to quiet camaraderie, their shared moments in the series’ closing chapters implying potential for deeper bonds.

Juggling combat missions with family obligations and athletic training showcases his multifaceted growth, while his unwavering emphasis on moral integrity anchors the team’s decisions. As the conflict escalates, Rikiya’s transition to Revolger pilot underscores his adaptability and readiness to embrace heightened responsibilities, solidifying his dual legacy as both humanity’s shield and a testament to resilience forged through kinship.