Modeled after Gaiking, Gai-chan operates as a core member of Robot Girls Team T. She exhibits a hot-blooded, assertive personality, never backing down from challenges to herself or her team. This trait fuels her intense rivalry with Team Z's Z-chan, igniting frequent clashes during competitions like the sports festival race. Gai-chan commands the Daiku Maryu for team transportation and missions. After the Team T Legend Plan upgrade, she evolves into Triple Gai-chan. In this form, she leads Team LOD, signifying progression in her role and capabilities. Her primary function involves protecting designated areas with her team, resulting in direct confrontations with opponents such as Team Z or threats like the Underground Empire.