Codename: Kamukura No. 4 Gender: Female Race: Robot Once the youngest member of the Game Development Department, she was a bright girl who enjoyed RPGs and developed games alongside the Momoi-Midori sisters, Yuzu, and Kei. However, as development progressed, game bugs and internal strife grew. She tried to mediate, but her patience wore thin until one day, Kei accidentally slapped Aris while trying to hit Momoi. Finally snapping, Aris spewed the vitriol she'd been holding back, declared she hated being with them, and dropped out of the Game Development Department and Millennium altogether, taking only her weapon and her Nintendo 3DS. While wandering and nearly being mugged by thugs, she was rescued by a woman named Aru, who had witnessed her outburst and withdrawal. When Aru offered her a partnership, Aris accepted without hesitation. Personality: Since that day, her kind image has vanished. She now dresses like a dark knight or a witch. Her equipment consists of six Fin Funnels, a Beam Saber, and the Sword of Light: Super Nova. The Fin Funnels split into six units to fire electric shocks, typically used to eliminate witnesses, failed subordinates, or targets.

Codename: Kamukura No. 5 Gender: Female Race: Human Formerly the Council President of Red Winter who governed the students well, she was ousted by a coup. She now works under Aru, who helped her during her exile. Personality: Cold as a blizzard to everyone except her comrades. If she doesn't like someone, she declares a "purge" and crushes them with her personal tank. (The description is short because of No. 4.)

Codename: Kamukura No. 6 Gender: Female Race: Rabbit Beastman Formerly the sniper RABBIT 4 of SRT, she carried out missions with Miyako, Saki, and Moe, but was always treated like she didn't exist. This neglect worsened until she felt less like air and more like an atom. The only time people noticed her was to send her on errands. One day, Aru showed her genuine interest, leading Miyu to decide to work under her. Personality: Quiet and timid. Her sniping skills are top-tier! (Description is short due to No. 4's length.)