|This article is about a/an suit of armor in Kamen Rider Hibiki.|
The Oni Armor is a set of samurai-like armor that gives the user physical power equivalent to an Oni. It was created in early years as a substitute for Oni when their numbers were low. But not just anyone could wear the armor, the user would have to be properly trained to wield it.
It was kept at a Kibu shrine owned by Yoshino Kamue, until it was stolen by Kamen Rider Shuki in order to claim a transformation device to assume Oni form. The armor was destroyed by a Koganeōkami used by Kamen Rider Zanki but Shuki had succeeded in taking Kamen Rider Todoroki's Henshin Kigen.
Its only weapon was a katana but the user could also use other abilities that they could already do, e.g. the Firebird Shikigami by Shuki.