Mistress Centipede

Mistress Centipede is a demon that is first encountered by Kagome in the modern world when she was looking for her cat Buyo. The demon emerged from the well in the Higurashi family shrine and pulled her in, transporting her to the feudal era.

Overview
Fifty years ago, before the creation of Naraku, Mistress Centipede was one of the most powerful demon in that era. She defeated various other demon and obtained Shikon no Tama until she was slained by a group of Demon Slayer. It was remove by Sango's grandfather the day after she was killed but she was still able to regenerate thank to the jewel still near her. Both of them injured each other and the demon was forced to retreat. She later attempted to take the young Kaede as a hostage to ransom Shikon no Tama from Kikyo. Her plan was cut short when she was killed by Inuyasha for the first time.

Kikyo, acknowledge that as long as Mistress Centipede body is near the jewel she will resurrect to no end. So she had her followers collect all remains of this fearsome demon and throw it down the Bone Eater Well, so that Shikon no Tama power will not be able to revive her again. The demon's remains would later was sent to the other world.

In the present era she was able to resurrect herself and attempt to take the Shikon no Tama from Kagome's body. In her self defense, Kagome was able to blast away one of Mistress Centipede's arm which forced her to retreat into the time hole. She resurfaced later that night to take the jewel again.

Power & Abilities
Despite her large size Mistress Centipede has rather good agility and was able to catch up with most other demons. As long as there is the Shikon no Tama nearby, Mistress Centipede cannot be truly killed.
 * Agility
 * Regeneration

Trivia

 * Mistress Centipede could be based off Yukiki's demon form from Ranma 1/2, which was also made by Rumiko Takahashi.
 * Her appearance is similar to the Kuchisake-onna's, as her mouth stretches from ear to ear.
 * In the English Dub, the size of her breasts seem to be edited down.