8 Facts About Infinity Castle in 'KIMETSU NO YAIBA' That Are Rarely Known, A Deadly Trap with Architecture Beyond Comprehension

Infinity Castle exists thanks to the unique ability of Nakime, the demon who possesses the power of spatial manipulation. With the biwa she plays, Nakime is able to create, move, and alter the structure of this castle at will, making it a place that is very difficult to track and conquer.

Infinity Castle has a very strange design and does not follow the laws of gravity. Its walls, floors, and ceilings can swap positions, creating an illusion of limitless space. This makes the castle a confusing place for enemies.

Infinity Castle serves as a meeting place for the Upper Moon demons. Muzan often summons them to this castle to give orders or reprimand them. Each Upper Moon has its own room that reflects their personality.

The design of Infinity Castle reflects Muzan's hierarchy and dominance over the demons. Muzan's position at the center of the castle signifies his power, while the other demons are spread out in more distant areas. This illustrates the power dynamics within the demon group.

Infinity Castle is a space that is completely under Nakime's control, so only demons or those permitted by Muzan can enter it. This makes it a very secure hiding place.

Infinity Castle serves as the backdrop for some of the most dramatic battles in Kimetsu no Yaiba. One of them is the confrontation between the Demon Slayers and the Upper Moon, which is filled with action and great sacrifices.

Nakime's ability to manipulate space makes Infinity Castle a deadly trap. The Demon Slayers who enter this castle must face sudden changes in space, which often separates them from their group.

Infinity Castle collapsed after Nakime was killed by Yushiro. Since this castle relied entirely on Nakime's power, her death made the entire structure unstable and ultimately caused it to disappear.