Kamen Rider Sharp Demon

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

Eiki
He has no supporter nor does he have any students or partners. Like most of the Oni Kamen Riders, it's unknown if he has a human form &/or a human name.

Transformation Tuning Fork
A tuning fork transformation device.

Demon Attack Drum - Green & White
A taiko buckle.

Demon Attack Club - Green Wins
A pair of drum sticks Sound Attack weapon.