In the popular anime and manga series InuYasha, the Blade of Heaven and Earth is a halberd forged by Kaijinbo from 222 demons. In the English dub of the series, the weapon is also known as the Naginata of Kenkon.

The weapon was wielded by the yōkai ninja Hoshiyomi, who had commissioned the blade in order to protect his lover, the priestess Tsukiyomi. The weapon itself is forced of many many yōkai so that it possesses a demonic aura of its own, enough to possess Hoshiyomi.

Fearing that Hoshiyomi would destroy all that they had fought for under the blade's possession, Tsukiyomi sealed him away with the intention of fearing him after dealing the the weapon. Unable to destroy it, she broke the weapon into two parts: the Ken blade, placed under the protection of the Hōjō family on Mount Fuji, and the Kon blade, which was sealed in Hakurei-Zan. Tsukiyomi died shortly afterwards, unable to free Hoshiyomi. Hoshiyomi would return decades later to reclaim the two blades and seek revenge for Tsukiyomi's supposed betrayal.

The blade is eventually destroyed, along with its demonic wielder, when the powers of Tessaiga's Bakuryuha and Kagome's Hama no Ya (sacred arrow) combined to combat it.

Attacks

Black Hole: an attack which sucks away all the energy within an area, be it yōki, sacred, etc.

Red Orb: a large red orb is fired from the blade, destroying all in the orb's path.

Barrier: creates a barrier, which protects its wielder.