異次元Infinity Castle無限城
無限城
THE INFINITE CASTLE
THE COMMANDERS

Muzan Kibutsuji
鬼舞辻 無惨
The progenitor of all demons. Cold, ruthless, and obsessed with perfection. He seeks the Blue Spider Lily to conquer the sun and become a truly eternal being.

Kagaya Ubuyashiki
産屋敷 耀哉
The 97th leader of the Demon Slayer Corps. Despite his frailty, his gentle voice and unwavering will command the absolute loyalty of the Hashira. He possesses the gift of foresight.
歪んだ現実A Labyrinth of
Distorted Reality
The Infinite Castle (無限城, Mugen Jō) is an extra-dimensional space that serves as the lair of the Demon King. Gravity is a suggestion, not a law. Rooms shift, corridors twist, and the very architecture bends to the will of the Biwa Demon, Nakime.
It is a place of eternal night, lit only by the ghostly glow of paper lanterns and the cold moonlight that seems to seep through cracks in reality.

The Twelve Kizuki
十二鬼月
Upper Rank Demons

Kokushibo
黒死牟

Doma
童磨

Akaza
猗窩座

Nakime
鳴女

Gyokko
玉壺

Gyutaro & Daki
妓夫太郎 & 堕姫
Demon Slayers
鬼殺隊
The Corps

Tanjiro Kamado
竈門 炭治郎

Nezuko Kamado
竈門 禰豆子

Zenitsu Agatsuma
我妻 善逸

Inosuke Hashibira
嘴平 伊之助
ARCHITECTURAL ANOMALIES

The Shifting Staircase

Tatami Infinity

Nakime's Stage

The Void Between
"The place has
no up or down."
— Nakime's Domain
The Infinite Castle exists outside the normal laws of physics. Gravity shifts at the whim of Nakime's biwa, sending corridors spiraling in impossible directions.
Constructed from the memories and fears of those consumed by darkness, every sliding door opens to a new nightmare. The architecture itself is alive, breathing, and hungry.
To enter is to lose all sense of direction. To fight here is to battle not just demons, but reality itself.

無限
Infinite Dimensions