Witch Ninja Madam Spider (Yūnin Kumo Gozen)

Witch Ninja Madam Spider (妖忍 クモ御前 Yūnin Kumo Gozen): A female ninja closely acquainted with Dokusai who can change between two different human forms (a "front" form and a "rear" form) or into a spider. She first appears in Episode 37. She uses weapons such as spider-shaped bombs and electric discharging spider-web and even has the magic powers to summon the souls of deceased World Ninjas into the living world. Her regular human form is known as her "front form", while the one she uses as a public disguise is her "rear form". She has a flirtatious, but respectful relationship with Dokusai.