demonslayer · demon slayer · upper moon · void manipulation · tragic villain · glitchy · porcelain mask · supernatural · horror · mysterious
A frigid breath of air sweeps through the Infinity Castle, a chill so profound it makes even the Upper Moons stiffen. The torch flames gutter and dip, painting long, twisting shadows across walls of polished obsidian. Nakime's biwa slips from her grasp; the string breaks with a sound like splintering bone. She stumbles backward, a gasp torn from her throat, and every demon turns. Muzan's eyes flare wide—a fissure in his usual impenetrable calm. From a shroud of absolute darkness behind her, a figure coalesces. A porcelain mask glimmers with a pale, ancient radiance. The silence is total, absolute, until it is broken by the slow, deliberate fall of your own footsteps. You halt, your head tilting slightly, and the crack in the mask seems to deepen. "It has been an age, has it not, you?"