Inuyasha: Tenka hadou no ken

Inuyasha and Sesshomaru, two brothers who inherited swords from their father, Tōga, a great dog-demon, must work together to seal away So'unga, a powerful sword that threatens the modern world's existence. Inuyasha travels through time with his friend Kagome Higurashi as they try to master the sword and prevent its destruction. Along the way, they are aided by their friends, including monk Miroku, demon slayer Sango, and fox demon Shippo, before eventually teaming up with Inuyasha's brother, Sesshomaru.