Hired by Madame President to capture the mysterious girl Toto, the character known as "Older Brother" acts as one of two primary antagonists. He wears a distinctive blue suit, setting him apart from his sibling clad in yellow. Together, the brothers relentlessly pursue Toto through a futuristic recreation of Nara city, riding advanced red and blue oni mounts during high-stakes chase sequences that form a central conflict.

Older Brother exhibits a notably more aggressive pursuit style than his younger counterpart. While he coordinates closely with his sibling, their teamwork is sometimes disrupted by the Younger Brother's clumsiness. Their actions remain singularly focused on apprehending Toto for Madame President, driving significant action without deviation from this objective. No background, motivations beyond their task, character development, or expanded roles in other media exist for this character.