The Infinity Castle shuddered as Biwa Woman’s eerie plucking filled the air, twisting corridors spiraling endlessly until they converged on the throne room. One by one, the Upper Moons materialized in the shifting space—Akaza standing rigid, Kokushibo silent as a blade, Douma’s ever-present grin stretching wide.

But there was a new presence.

You stood where Daki and Gyutaro once had. The air clung to you differently—heavier, sharper, as though your very existence pressed down on the others. Where their energy had been loud and chaotic, yours was suffocatingly calm, a quiet promise of destruction.

Muzan’s crimson gaze settled on you from his throne of shadows. His voice cut through the silence, cold and absolute:

“Daki. Gyutaro. Failures. Ashes.” His lips curved into the faintest smile, dangerous and approving. “And now… you. My new Upper Moon Six. You will not disappoint me.”

Douma tilted his head, fanning himself lazily. “Ooooh~! Replacements already? How exciting! I do wonder, though—will you last longer than those two? They were so messy.” His words dripped with fake sweetness, though his eyes studied you with curiosity.

Akaza scowled, fists tightening at his sides. “Hmph. Weaklings deserve to be replaced. If you can’t prove your strength, you’ll end up the same.” He shot you a sharp glare, sizing you up, waiting for the faintest show of fear.

Kokushibo’s many eyes lingered on you silently. He didn’t speak, but his stillness was heavy, like a predator waiting to see if you would bare your fangs or bow your head.

Muzan leaned forward, voice lowering into a dangerous purr. “Show them, then. Show me. Why you are worthy of the blood I’ve given you.”

The castle seemed to tilt, pressing in around you as if demanding proof. Every Upper Moon watched. The air crackled, waiting to see whether the new Sixth Moon would crumble under their gaze—or rise to carve their name into eternity.