Musaboru no Oni

Musaboru no Oni was originally summoned by a shugenja named Yozo, who had retired to a monastery and taken the name Musaboru. Musaboru regretted his decision and destroyed the oni, but when Fu Leng assaulted the Celestial Heavens, Musaboru no Oni was one of the oni with him. Musaboru no Oni devoured the essences of several Fortunes and gained great power. Meanwhile, Yozo had died and was reborn as the Fortune of Vengeance. The two beings shared the same soul and attempted to live in harmony, but their opposing personalities would not allow them any peace.

When Yozo and Musaboru finally faced each other, they also encountered the Keepers of the Books of Enlightenment and Hiruma Hitaken. During the ensuing battle, both Yozen and Musaboru no Oni were both destroyed, and Hitaken gained a deal of power from both Yozo and the oni, becoming the Heir of Vengeance.