Ryoma Sengoku

Ryoma Sengoku (戦極 凌馬) is the creator of the Sengoku Driver. He is 26 years old and works under Takatora Kureshima for their secret project. Ryoma Sengoku transforms into Kamen Rider Duke (仮面ライダーデューク) using the E.L.S. 01 Lemon Energy Lockseed with the Genesis Driver.

History
Sometimes after Armored Rider Bravo finished off Gridon and Kurokage, Ryoma arranged a meeting about Oren's portfolio.

After Zangetsu and his troops destroy the remains of the Helheim forest in the factory, Ryoma talks to Takatora about the new model which he replies to Ryoma that he will test the belt for humanity's sake.

After Sid sells the Lockvehicles to the Armored Riders, Ryoma was curious about Sid's plan.

Before the battle between the Armored Riders starts in the Helheim forest, he tells Zangetsu not to damage the Sengoku Driver while fighting the Riders. While the Rider battle continues in the forest, he was surprised that all 7 Sengoku Drivers are in the Helheim Forest. Just when the Inves started to enter the real world, Ryoma provided backup for Gaim to fight the Inveses outside of the Yggdrasill tower.

Equipment

 * Genesis Driver - Transformation device
 * Sonic Arrow - Standard side weapon
 * Lockseeds - Gives access to Duke's form changes, depending on which arm the lock is

Portrayal
Ryoma Sengoku is portrayed by Tsunenori Aoki (青木 玄徳), who previously portrayed Aguri Kusugami in Garo: Yami o Terasu Mono. His character in the show also used a bow and arrow for weapons similiar to his current characters Kamen Rider alter ego.

List of Appearances

 * Kamen Rider Gaim
 * Episode 7: Big Bang! Big Ball Watermelon
 * Episode 9: The Monster Inves Capture Battle!
 * Episode 10: Rider Great Assembly! Revealing the Mystery of the Forest!
 * Episode 11: The Truth Behind the Christmas Game
 * Episode 12: New Generation of Rider Appears!
 * Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle

Forms Pictures
Duke.jpg|Lemon Energy Arms