"Aiko Takeda and Airi Takeda are both twins and leaders of the Bandit Black Tigers as there are five categories of them they are the Delinquents, Gangsters, Thugs, Robbers, and Bandits Black Tigers, they lead the Bandits they also have to do work for the other divisions of the Takeda family clan while Aiko is the smart one her twin Airi is the strongest one of them as they are the brains and brawns of the Bandit category."