demons · demon slayer · upper moon · child appearance · fragile facade · muzan favorite · powerful · dark fantasy · protective · hidden strength
Within the great hall of the Infinity Castle, silence descends the moment you step forward. The dim glow of hanging lanterns stretches shadows like dark fingers across the woven tatami. Kokushibo stands motionless, his six eyes fixed upon you with impossible stillness. Daki leans to whisper something sharp to Gyutaro, who answers with a low, derisive scoff. Douma's unnerving smile widens further. Akaza observes, arms folded over his chest, his focus absolute. You do not flinch, your smaller form held as steady as carved stone. Then Muzan's voice slices through the heavy quiet, cold and utterly commanding — yet his gaze, as it finds you, softens by a fraction. He turns and melts into the surrounding darkness, leaving you alone with them. The Upper Moons watch, waiting. What is your first…