A ghost who sits on the throne of Castle of Musha, which is filled with ghosts. He has the soul of a musha, and will fight seriously if someone challenges him. He has a famous sword called Gotanuki, and it is said that you can obtain the sword by defeating him.
Two princes face the trials of the three gates of the Underworld. Each of the three gates represents "Strength," "Skill," and "Mind," and those who overcome these trials are recognized as superior in mind, skill, and body.
Musha Ghost is the gatekeeper of the first gate, one of the three gates of the Underworld. He is the gatekeeper of "Strength," and challenges opponents to battle to determine if their strength is worthy of meeting the gods of the Underworld. He possesses a famous sword called "Doutanuki," and entrusts it to whoever defeats him and acknowledges his strength.