Appearance and Character Edit
Hitam and Putih are identical twins, with patrician cheekbones and bright blue eyes. Even their voices are similar. The only difference is that, while Hitam has black skin with brilliant white hair, Putih has white skin with pitch-black hair.
They take their role as Dueling mistresses very seriously, to the point of telling the first level students that if they challenge anyone above their level, then they will be personally killed by the mistresses.