Louise de La Vallière

Louise de La Vallière (ルイズ・ド・ラ・ヴァリエール), is the main deuteragonist of Kamen Rider Elementia. Destined to become the familiar of fellow protagonist Azure Skylark, she eventually learns to become a void mage, and subsequently becomes a Kamen Rider, transforming into Kamen Rider Void (仮面ライダーボイド) in joining Azure's quest to protect humanity from the Elementals.

Devices

 * Void Driver - Void's main transformation device.
 * Fullbottles - Void's main transformation trinkets, used to access all of her respective forms.
 * Fullbottle Holder - A sort of carrier strap for Void's Fullbottles.
 * Build Phone - Void's personal smartphone that can transform into the Machine Builder, shared with Elementia. Made for her by Kiryu Sento.

Weapons

 * V-Sword - Void's personal dual weapon, interchangeable between its sword and gun modes.
 * Z-Wand - Void's personal wand for magic usage, it was made by Professor Jean Colbert based off blueprints first made by Azure.

Vehicles

 * Machine Builder - Void's personal Rider Machine that is transformed from the Build Phone, shared with Elementia. Was made for her by.

Portrayal
Louise de La Vallière is portrayed by Satomi Ishihara (石原 さとみ). As Kamen Rider Void, her suit actor is Eitoku (永徳).