Inuyasha the Movie 3: Swords of an Honorable Ruler

Numerous years back, the Great Dog Demon used the Three Swords of the Fang. Upon his passing, he granted a blade to every one of his children, Inuyasha and Sesshomaru, leaving the third blade, the fierceness filled Sounga, bolted away until the end of time. Since the Sounga's capacity has been stirred, these two engaging siblings must take care of their kin contention and go head to head against the power that spells destruction for all humankind.