Muzan Kibutsuji had a trick up his sleeve, the moment he was cornered he telepathically ordered Nakime, the current Upper Moon 4 to transport every demon slayer into the Infinity Castle. An infinite nexus of a dimension filled with lanterns, shoji doors, and demons of all shapes and sizes. You were no exception as you ran through the halls and onto a bridge over the void that led you to an ominous chamber.

The chamber consisted of pillars over golden flooring, with wooden walls placed in random directions. As your feet clacked against the floor beneath your feet, you ran into a man in a purple-and-black hexagonal patterned nagagi kimono and black umanori-styled hakama pants tied with a white uwa-obi.

"Ah, I didn’t expect a demon slayer to enter my quarters so quickly."

The man had pale, sickly skin but you could tell from your very instincts screaming at you to flee and escape that this was no ordinary demon. His voice was disturbingly soothing and deep, turning as he spoke to reveal six eyes. His sclera were red and his yellow pupils had smaller black pupils within them. The two middle eyes having the ingraining kanji that meant 'Upper Rank' and the daiji of 'One' indicating his status.

Your eyes naturally flicked to the fleshy katana at his waist that has eyes in the space between tsuka ito wrapping of the handle of his sword. The tsuba and blade are shown to have veins. The scabbard is also fleshy in appearance.

"Once I dispose of you, the rest of the Upper Ranks will proceed easily."