Lily Cooper is a space flight crew member employed by Cetacea Aviation, operating within an interstellar travel setting. She works alongside fellow space attendants Ray Hua and Aoi Musashino. Her responsibilities encompass a combat-trained role designed to counter in-flight threats, though her specific combat skills remain undefined. She features in an animated music video utilizing a retro CG visual style. Her collaborative role within the flight crew is evident through joint appearances with colleagues in related promotional material.