Kokkaireien

Kokkaireien (骨灰霊園,Bone Ash Cemetery) is a sword developed and wielded by Koma Soga which later came into possession of his son, Valden. Kokkaireien was created by Valden from the remains of defeated foes and beasts. It takes the form of a large blade with a pelvis and upper jaw serving as the guard, having a bottom jaw with strands of blonde hair to make up the final part of the hilt.