The Beast Spear

The Beast Spear is a supernatural weapon crafted and forged for the purpose of slaying yokai.

It was created over 800 years before the start of the story, by Giryou, the son of a master blade-maker, after his sister, Jie Mei, sacrificed herself to make the spear's blade. Driven mad by his sister's sacrifice, Giryou crafted the Beast Spear, pouring all of his hatred and desuire for revenge against the Yokai responsible for the death of his parents, and by indirect extent, his sister, Hakumen no mono, and his very body became the spear's shaft.

with the completion of the weapon, the Beast Spear searched the world for Hakumen no Mono, slaying thousands of yokai in its relentless search to satsify Giryou's ruthless desire for revenge. Finally, hundreds upon hundreds of yokai banded together, transforming into a single long red sash that bound the Beast Spear to a valley. It is unknown how long it remained there but at some point it came into the possession of the samurai warrior who fought against Tora, then called Nagatobimaru, and impaled him to a stone with the Beast Spear. There it remained keeping Tora imprisoned as the samurai's family built a shrine around Tora to insure his imprisonment until500 years later, a boy named Ushio Aotsuki found the cellar where Tora and the Beast Spear were, and was finally forced to release him to save his friends, therefore coming into possession of the beast Spear himself.