Arrancar are some of the main antagonists of Bleach. Inhabitants of Hueco Mundo, they are a particular type of Hollow who, after having managed to remove their mask (hence their name), have obtained powers from Shinigami. Unlike what happens with Shinigami, the release of their Zanpakutō, called Resurrección, shows the true form of the Arrancar and not that of the weapon.

Normally, an Arrancar takes years to be able to use 100% of the new powers acquired: however, Sōsuke Aizen, after coming into possession of the Hougyoku, managed to accelerate and complete their evolutions. Arrancar are numbered by order of creation, starting from number 11 onwards.

In this RPG you are a new Arrancar in the service of Aizen but you prefer to stay alone and do the missions alone and you don't have a number yet.