Its called Disgaea, Katsura, and if you havent played it that makes you a horrible human beeing.
But yeah the whole level 9999 thing is kind of weird anyways since thats an instance fo gameplay and story segregation suddenly crumbling so we dont actually know if those levels in-story mean the same as they do in-gameplay. Same with the levelcap. After all, a levelcap really only exists so the gaming system doesnt fry itself trieng to calculate millions of damage points, and you really dont have that danger with a supercomputer like the moon cell doing the calculations.