Kaito Kumon

Kaito Kumon (駆紋 戒斗) is one of the main characters in the Kamen Rider Series installment, Kamen Rider Gaim. He is the leader of "Team Baron", Team Gaim's rival. Growing up as a poor guy, he always believed that the weak warriors are exploited. After watching Gaim battling the Shika Inves, he received a Sengoku Driver as well and a Banana Lockseed from Sid, which allows him to transform into Kamen Rider Baron (仮面ライダーバロン).

Gaim
As Team Gaim starting to get popular, Kaito doesn't know what to do until he got a call from Sid. Sid then offers him a Sengoku Driver along with the Banana Lockseed. He accepts it and duel Gaim with his new powers. Before they start fighting, Sid gives them new Lockseeds, which it forms their bikes. The Riders rode their bikes, however a portal appears, which sent them to the Helheim forest. In the forest, they fought some Inves, until the mysterious women appears to Baron telling his fate using its power.

Personality
Cold, Kaito believes firmly in the doctrine of "the survival of the fittest", thinking that the weak should perish for the strong. Despite his ruthless personality, he has a soft spot towards kids and humanity. Unlike his teammates, he dislikes cheating and dirty tricks as he likes to win fair and square, knowing the risks of out of control Inves and how it could endanger humanity, especially if the Inves are in a higher class states. After Kamen Rider Gaim defeated Raid Wild's Ryoji in Inves Game, Kaito aware that the rider seems doesn't know how to use the Sengoku Driver properly for, stating that his foolishness is far more than Kaito's.

Arms
As with the other Lockseed-using Riders, Kamen Rider Baron's forms are called Arms (アームズ).

Devices

 * Sengoku Driver - Transformation device
 * Banaspear - Baron Banana Arms' personal weapon
 * Medajalibur - Baron OOO Arms' personal weapon
 * Lockseeds - Gives access to Baron's form changes, depending on which arm the lock is

Vehicles

 * Rose Attacker - Kamen Rider Baron's Rider Machine

List of Appearances

 * Kamen Rider Gaim
 * Episode 1 - Transform! The Orange from the Sky!? (debut as Kaito Kumon)
 * Episode 2 - Certain Kill! Pine Kick!
 * Episode 3 - Shock! The Rival's Banana Transformation!? (debut as Kamen Rider Baron)
 * Kamen Rider × Kamen Rider Gaim & Wizard: The Decisive Sengoku Movie All Battle
 * Gaim Portion

Portrayal
Kaito Kumon is portrayed by Yutaka Kobayashi (小林 豊).

As Kamen Rider Baron, his suit actor is Eitoku (永徳), who has been the suit actor of majority Secondary Riders of the Neo-Heisei era (except Beast).