Kamen Rider Hibiki S01 E32 Bursting Song

"To us, there are heroes."

Kounosuke Kogure, a strong-willed arms developer, comes bearing a gift for the Oni who work at the Tachibana Sweet Shop: the Ongekizofukuken Armed Saber. Unfortunately, the weapon is too powerful for a normal Oni and the repercussion for trying to use it is losing the ability to transform into an Oni.