***Warning, the following may contain spoilers for Mononoke. Reader discretion is advised.***
Series Synopsis
Spirits exist in their own plane. That is where they belong. And that is where they should stay.
Yet these entities seek to attach themselves to our world. When they do they become the beings known as the Mononoke. Filled with anguish, these creatures can cause great harm and need to be destroyed.
Thus, enters the Medicine Seller (voiced by Takahiro Sakurai).
A drifter, the Medicine Seller hunts the Mononoke. In his possession is a mysterious sword that can exorcise these demons. Although the sword's power can only be unleashed after meeting three criteria.
In order to defeat a Mononoke, the Medicine Seller must learn the form the spirit takes. The truth behind its existence. Plus, the reason why it lingers.
This is a task easier said than done. Though the Mononoke are dangerous, they are born from the evil that resides in the hearts of men. The darker the secret, the tighter a person holds on to it. And some people hold some very dark secrets.