To become immortal, a Usurper needs to conquer the universe inside them.
Alcazar of Forging Flame, a colossal skyscraper with an expanding platform on the top to temper the space between it and the scorching sun within the Usurper's Athenaeum.
Every floor and pillar that supported the complex mega infrastructure was protected with turrets and long range manned-sniper cannons to defend the tall body of the Alcazar. Tuli befriended one of the unique race of mini gnome workers who helped the major development of her cultivation inside the miniature realm.
On the Alcazar's foot was numerous facilities such as a magic circuit factory, mana-nourisher structure, places for numerous tamed mystical beasts, Technique Cores protected by numerous formation and traps, and all kinds of biomes for the owner of the world to extract and siphon for their miniature realm's development.