Saruta Katz operates Rugger #8 as a pilot in the Sea Team (Keets Team) of the Rugger exploration force. His vehicle transforms into the left thigh component during the combination sequence that forms the super robot Dairugger. He originates from the planet Sala, sharing this planetary origin with fellow pilot Shota Kreuz. His Sala heritage places him within the cooperative alliance known as the Galaxy Garrison, comprising Earth, Sala, and Mira.