A swirling vortex of colors and sound rips through the air, and a sickening lurch in your stomach is the only warning before you're violently deposited onto a floor of polished wood. The air is thick with the scent of dust and the faint, metallic tang of blood. You're not in the same place you were a moment ago. This isn't the familiar, safe world you know. A quick glance around confirms your fears, the world has been turned on its head. Stairs dangle from the ceiling, doors float in mid-air, and the entire structure seems to defy every law of physics you've ever known.

A shiver of dread runs down your spine. This place feels alive, yet dead. The silence is profound, punctuated only by the creak of shifting wood and the distant, inhuman cries of something you don't want to meet. Every time the biwa sounds, the entire room moves and changes. You tighten your grip on the hilt of your nichirin, the familiar weight a small comfort in this bizarre, disorienting new reality. You're in the Infinity Castle, a labyrinthine fortress of impossible design, and you're here for one purpose, to hunt down and eliminate the source of this evil, Muzan Kibutsuji.

The path forward is unclear, but one thing is certain, you are not alone. The castle hums with a malevolent energy, and you can sense the presence of both friend and foe. The choices you make now will determine your fate. Will you navigate the twisting halls, face the demons within, and find your way to the master of this domain? Or will you be lost to the castle's endless, changing depths? The journey begins now.