Mr. White is an elderly man who owns the Shop of Wonders, a small establishment in Benham City that he admits is not very successful, having gone months without customers. He proclaims that his shop has absolutely everything under the sun, yet its main significance lies hidden in the basement: a transdimensional portal that connects Earth to the planet Quarton. Mr. White protects this portal alongside his friend Boreas, one of the Guardians of Quarton, and serves as a guide and mentor to the four teenage boys—Guren Nash, Ceylan Jones, Toxsa Dalton, and Chooki Mason—who become the new generation of Tenkai Knights. He often responds to their questions with vague hints or counter-questions, maintaining a reserved and mysterious demeanor. Despite his cryptic nature, his commitment to safeguarding the portal and supporting the knights is unwavering. He also possesses a high-tech scooter, which he uses on occasion. In the Beast World, a parallel version of him exists named Mr. Black, who has black hair instead of gray. Mr. White does not engage in direct combat, but his role as a keeper of the portal and a source of quiet guidance is crucial to the knights’ ability to travel between worlds and continue their mission. His motivations center on preserving the balance between Earth and Quarton and ensuring that the Tenkai Knights are trained and prepared to face threats such as Lord Vilius and the Corrupted Army.