I will never get to see you this summer

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

Transformation Tuning Fork
A tuning fork transformation device.

Demon Attack Drum - Granite Board
A taiko buckle.

Sound Attack Club - Black Power
A pair of drum sticks Sound Attack weapon.