During the events of Devil May Cry 5, the Demon King Urizen grew bored waiting a the demonic fruit to be harvested. In front of his bone-encrusted throne covered by hellish vines, he constructed a maze using the mathematical perfect of the Hilbert curve to slowly torture the remaining human inhabitants of the city. Having no food or water, the prisoners are forced to spend their final days going mad in the labyrinth as they slowly pass on.