Ryoma Sengoku/Soccer World

"I think I can go higher. More powerful; more versatile; power worthy of a god."

- Ryoma voicing his ambition to Kouta and Kaito.

Ryoma Sengoku (戦極 凌馬), sometimes referred to as Professor Ryoma (プロフェッサー凌馬) was a researcher at Yggdrasill Corporation under his closest friend's Takatora Kureshima's leadership, and the creator of the Sengoku Driver and the Genesis Driver. As Kamen Rider Duke (仮面ライダーデューク), he initially transformed using a Sengoku Driver during the early stages of experimenting before switching over to a Genesis Driver after planning his coup against Takatora.

Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!
In this world, Ryoma reveals the Over Lord's existence for his presentation, founding a piece of slab and its source. When the slab is destroyed, his camera is broken and recently attacked by an entity of Forbidden Fruit named Kougane. Trying to defend himself as Duke, but Kougane's hopper infects him and causes his death, at same time the camera focuses on Lapis, whom happens to witness his demise. His camera recording is soon found by Mitsuzane, shortly when Kougane's hopper is about to infect the young Kureshima, but Mitsuzane quickly noticed it and was able to prevent himself from being infected like what happened to his older brother, Takatora.

Devices

 * Genesis Driver - Transformation device
 * Lockseeds - Gives access to Duke's Arms changes, depending on which lock is used

Weapons

 * Arms Weapons
 * Sonic Arrow - Duke's personal weapon in Lemon Energy Arms and Dragon Energy Arms

Portrayal
Ryoma Sengoku is portrayed by Tsunenori Aoki (青木 玄徳). As Kamen Rider Duke, his suit actor is Kenji Tominaga (富永 研司).

Appearances

 * Kamen Rider Gaim
 * Kamen Rider Gaim: Great Soccer Battle! Golden Fruits Cup!