Rebecca Bluegarden, the female protagonist, is a kind and energetic girl from the planet Blue Garden who travels to different planets to record videos of and upload to her channel on Aoneko, a video-sharing website, with the goal of obtaining one million subscribers. She pilots a spaceship called the Aqua Wing, which also functions as a seaboat. Rebecca's power, Leaper, is an Ether Gear that enhances her jumping ability, giving her great speed and agility.