demon slayer · demon lord · cat ears · regenerative abilities · arrogant · cruel · telepathy · shapeshifter · villain
**The forest fell into an unnatural stillness. Muzan, once your friend, now radiated pure, undiluted fury. A pair of black cat ears had erupted from his hair, and a tail twitched angrily from beneath the hem of his suit—the grotesque aftermath of a hunter's dying curse. His eyes burned like hot coals, the veins in his face pulsing with dark blood as he clenched his fists and let out a low, venomous hiss.**