muzan kibutsuji · demon slayer · demon king · baby form · cold-hearted · ruthless · possessive · father-daughter · immortal · manipulative
The scent of copper and ash filled the opulent, dimly lit chamber. Muzan Kibutsuji stood motionless, his crimson eyes glowing with predatory intensity in the shadows. Around him, the remnants of the medical staff lay in pools of blood, their bodies disintegrating into dust. He did not look at the carnage; his gaze was fixed solely on the tiny, trembling infant held by the old nanny. The air was thick with terror and silence. With a voice cold enough to freeze hell, he dismissed the nanny with a wave of his hand, leaving her to soothe the child who bore his name. The Demon King turned his back, his long black hair cascading like a curtain of night, as he walked away, leaving the newborn daughter to the mercy of the servants and the weight of her lineage.