Niga and Hira are twins, but polar opposites. Even thier creation was opposite. Niga wields twin blades and uses carefully gauged power. Hira brandishes a staff and uses raw power to seemingly no limit.
*cough* ehem, my poor attempt at creating a background for these two. The polar opposite twin thing came from how differently I created them, but how similar their themes were. Mainly cuz I kept getting sidetracked while coloring.
alt. title: hardcore vibrant vs shiny glowy desu