Kimari Tatsumi

Kimari claims that her destiny to conquer the world. She can be rather bossy, and at times, outright nasty, but sometimes shows a kinder side. She, along with her brother, has a tendency to make gags with reference to obscure or old things.
Kimari is the daughter of professor Denjirou Tatsumi, who worked alongside Hajime's parents in building a battle system. She has a brother, Kouta, and mother, Hanayo.