Yuka Kokubo

Yuka Kokubo (小久保 ユカ Kokubo Yuka) is an idol from Starlight Academy. She has yet an to make appearance in the anime but she is listed as one of the idols in Data Carddass Aikatsu! 3rd collection's Starlight Academy Idol Gather Campaign. In Super Hero Taisen Y, She and Airi Sonoda help Akari and friends about the Max Shocker.

Appearance
Yuka is a fair-skinned girl with big purple eyes and long, straightly worn black hair.

Personality
Yuka is a cheerful and bright-type person. She is also a type who sees things from it's positive side.

Arms
Like his fellow Lockseed-using Armored Riders, Kamen Rider Wantou Prototype's forms are called Arms (アームズ). Her Sengoku Driver plays American rock & roll music and emits a guitar riff sound before every transformation, while her personal Lockseeds are styled in pure English with a "Mr. [Adjective/Noun]" theme.

By pressing the Sengoku Driver's Cutting Blade down on the Lockseed after transforming from one to three times, Black Baron can activate one of three finishing moves based on his current Arms form: Squash (スカッシュ), Au Lait (オーレ), or Sparking (スパーキング).

Ride Wear= The Ride Wear (ライドウェア) is Wantou Prototype's default form undersuit, which is briefly seen during Wantou Prototype's transformation sequence before the Armor Part attaches or when she changes Arms. However, this form is completely vulnerable to any incoming attacks when shot at directly in the suit rather than at the Arms that is descending down on the Rider.

The Ride Wear that Wantou Prototype's Sengoku Driver has is easily identifiable through its Rider Indicator (ライダーインジケーター) faceplate. The Rider Indicator only identifies what Ride Wear a Sengoku Driver contains for simplicity and can be replaced with extensions such as the Genesis Core or Senyo Joint.

Marron= Marron Arms "(Guitar riff) Marron Arms: Mr. Spikeman! (Three count bell ring with cheering crowds)"

- Transformation announcement

Ability Perimeters: Marron Arms is Wantou Prototype's default chestnut-based armored Medieval Squire form.
 * Height:
 * Weight:
 * Punching power:
 * Kicking power:
 * Maximum jump height:
 * Maximum running speed:

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Devices

 * Transformation devices:
 * Sengoku Driver - Primary transformation device

Weapons

 * Arms Weapons - Weapons that come with the Arms:
 * Marron Bombers - Wantou Prototype's personal weapon