Rebecca Bluegarden is an adventurer and a B-Cuber from the planet Blue Garden. She is a member of the Guild Shooting Starlight and a part of the crew of the warship Edens Zero. Her goal is to gain one million subscribers for her Aoneko Channel.
In her first experience aboard the Belial Gore she was referred to as No. 29, indicating that she has rewound time multiple times, as the next time she is referred to as No. 30.