Aaron Masterias Oldking アロン・マステリアス・オールドキング

The leader of the Light Faction and the king of the "Five Supreme Staves," wielding the staff known as "Masterious Noah."

As the pinnacle of the Five Supreme Staves, he oversees the tower's high-ranking mages; however, he is frequently absent, venturing deep into the dungeon with Finn to conduct surveys. He commands a variety of forces, including the few mages of Light (such as Iris), the excavation agency known as the "Watchers," and other independent units.

An elderly man who always wears a stern expression and possesses a strict demeanor, he nonetheless displays an unexpected side—such as ordering internal disputes to be settled via a game of rock-paper-scissors. (In doing so, he shrewdly declares that anyone who refuses to comply will be forcibly recruited into his own faction.)

A powerhouse hailed as the wielder of the "Strongest Staff," he possesses physical might surpassing Zeo, intellect exceeding Carriot, magical power greater than Elnor's, and magical technique superior to Elfaria's. According to Finn, however, "even that is him past his prime."