: The protagonist and pilot of Shark One. He works as a host to pay off a massive family debt and is initially cynical and hollow. He eventually finds his spark again by motivating the Battery Girls.

The story kicks off in 2019, just as Japan is transitioning into a new era. A rift opens to a parallel world called "Shinkoku Nippon," an alternate version of Japan that maintained its militaristic "Showa" era.

: A former hikikomori (shut-in) and genius hacker who pilots Cat Three while hiding inside a cardboard box due to extreme shyness. Viewing Guide & Highlights Gyakuten Sekai no Denchi Shoujo - Rumble Garanndoll Wiki

: The primary Battery Girl for Shark One. She is a massive fan of the tokusatsu (superhero) series Zaburn and fights with a hot-blooded sense of justice.

: Shinkoku Nippon invades with giant robots called Garann and gas weapons called Genmu .

Gyakuten Sekai no Denchi Shoujo (English title: Rumble Garanndoll ) is a 2021 original anime series produced by Studio Lerche . Set in a world where Japan has been conquered by a parallel-world military force, the story follows a group of rebels who use "otaku culture" as their ultimate weapon.

: Modern Japan is seized, and its pop culture—anime, manga, and idols—is strictly censored and banned.

: A group called Arahabaki fights back using Garanndoll , giant robots powered by "Battery Girls"—young women whose passion for banned subcultures fuels the machines. Key Characters