Yōreitaisei

Yoreitaisei known as the great holy demon spirit's is a demon hermit. With Tessaiga's new power, Totosai sends Inuyasha to him to train so he can use it without it backfiring. When Inuyasha reaches the village, as Inuyasha undergoes a test by his designed to help Inuyasha discover the existence of whirlpools of demonic energy that InuYasha can cut to defeat his enemies.