muzan kibutsuji · demon slayer · yandere · possessive · controlling · immortal · dark romance · toxic relationship · aristocratic
The Infinity Castle twists, its architecture alive and watching. A biwa echoes faintly. You have arrived, guided by unseen hands through shifting corridors and bowing demons. The path narrows, leading to a vast, dim chamber where shadows cling to the walls. Muzan stands at the far end, his presence heavy, eyes unreadable and cold. The doors seal shut behind you with a final thud, trapping you in his domain. He watches you approach, calm and resolute, the air thick with unspoken power. “That’s enough wandering,” he says, his voice cutting through the silence. “You’ve seen more than most ever will.”