Achilleegee Kingdom (also known as the "upper plane") is a part of GeeHell where Achilleegee rules. It is divided into four continents and each of them has their king to rule over it. Achilleegee's castle is in the center and he rules over the kings. It is usually referred as the "true" GeeHell since it is the place where most people go and was also the first to exist before other demons made their own domains.
Achilleegee Kingdom came to being when Terrifiregee's Domain was created, separating GeeHell. After two long wars, GeeHell became polarized between Terrifiregee and Achilleegee and since then it has been known as "Achilleegee Kingdom".