Kamen Rider War Demon

Kamen Rider War Demon is one of the many Oni Kamen Riders in the fanfictional series Kamen Rider: Echo Demon.

Touki
Like most of the Oni Kamen Riders, it's unknown if Touki has a human form &/or a human name.

Demon Transformation Whistle
A flute whistle transformation device.

Sound Attack Cry - Hair Whorl
A trumpet buckle.

Sound Attack Tube - Storm
A trumpet Sound Attack weapon.