Kiyomi Arai balances dual lives in Mikado City. By day, she serves as an errand girl for the Central Police Force, routinely facing sexism from male superiors who assign tasks like fetching coffee and tea. This daily dismissal fuels her deep frustration with gender-based discrimination. When fighting crime as part of an all-female superhero team, she sheds her subdued demeanor, adopting a fiery and brash combat persona. She pilots a giant ninja robot during these missions, displaying aggression and confrontational tactics against enemies. Visually, she is characterized by glasses featuring swirly lenses, with occasional close-ups revealing glimpses of her eyes. Within her five-member team, she interacts with contrasting colleagues: a calm yet competitive delivery girl, an eccentric inventor prone to snark, a ditzy teammate obsessed with sweets, and a dramatic leader fixated on beauty and credit. Her interactions include exchanging blunt, sometimes vulgar, criticisms of antagonists during battles.