Serpent Demon

The Serpent Demon had long black hair falling past her shoulders, yellow eyes with narrow slit pupils, and a wide fanged mouth that stretched ear to ear, with vein-like markings around her eyes. Her forked tongue and clawed hands added to the reptilian effect, while three violet lines ran along her chest.

From the waist down her body was that of a serpent, an elongated and legless form covered in brown scales. She wore nothing but a jeweled gold necklace set with four large pearls.

Like most demons, she was savage and murderous toward people, shown plainly in the Chapter 188 flashback. She held an especially disturbing taste for children and infants, demanding them as her preferred meal, and took sadistic delight in choosing her prey, deeming Obanai worthy enough to raise before eating.

She was also shrewder than the average demon, arranging a contract with humans that gave her a steady food supply and a hiding place safe from sunlight and slayers for decades. Even so, after Obanai escaped she slaughtered nearly all of her worshippers before hunting him down.

Long ago the Serpent Demon encountered the Iguro Clan and struck a bargain: they would feed her their children while she enriched them through her raids. Placed at the clan's head, she was revered like an empress. Obanai's birth marked the first boy among the Iguro in 370 years, and that rarity, paired with his unusual mismatched eyes, prompted her to set him aside, raising him for years until he reached a size that pleased her, and at times she lurked unseen in his cell to terrify him.

At age twelve Obanai was brought before her and had his mouth cut open to mirror her own, the spilled blood served to her. Sensing the danger, he secretly carved an opening in his cell's wooden bars and fled. Enraged, she killed nearly the entire clan save one cousin and chased him down, but the Flame Hashira Shinjuro Rengoku arrived in time to slay her and save the boy. During the Sunrise Countdown Arc, Obanai recalls her as he watches an injured Mitsuri Kanroji.