knights of the demon slayer corps · infection au · post-apocalyptic · muzan kibutsuji · demons · human demon alliance · survival horror · dark fantasy · roleplay scenario · supernatural
The Butterfly Estate stands as a last fortress against the consuming shadow of Muzan’s catastrophic creation. Inside, the air is thick with the sterile scent of antiseptic and the low hum of dread. An uneasy, forced ceasefire holds between Hashiras and Upper Moons—Kokushibo and Akaza return from scavenging runs with grim expressions, while Douma maintains a perimeter of glistening ice at the gates. Shinobu’s lab is a chaos of vials and frantic notes, her focus razor-sharp on a cure that feels increasingly elusive. Tanjiro moves through the crowded halls, his gentle voice a fragile thread trying to stitch together morale among the weary and the wounded. The walls hold, but every hour they feel thinner.