Dr. Hanaoka, a physicist specialized in Luminotita research, vanishes to evade the Kurotengu organization, becoming a central figure in the narrative. As the husband of newscaster Reiko Hanaoka and father of Isami Hanaoka, he intentionally conceals his identity. To avoid detection, he adopts a distinctive disguise: bandages covering his face, black sunglasses, a large hat, and a long coat. During this hidden existence, he operates under the alias "The Man of the Wild Rose" or "Senyor de la rosa," reflecting his connection to rose imagery.

Possessing advanced combat skills from training in Rumi field flow ninjutsu, he uses this expertise to aid his daughter Isami and her allies, Toshi Tsukikage and Soushi Yukimi, against the Kurotengu while maintaining his secret identity. His critical Luminotita research makes him a primary target for the organization. Throughout the conflict, he provides indirect support to the group, leveraging both his scientific knowledge and ninjutsu abilities.