Kaito Kumon/Soccer World

In the Soccer World, Kaito Kumon (駆紋 戒斗) is the leader of Team Baron who transforms into Kamen Rider Baron (仮面ライダーバロン).

Golden Fruits Cup!
Being brought into a dream world again, but with new memories, Kaito is the captain of Team Baron who only respects the strongest like Team Gaim's Kouta (who has the main timeline's memory while brought by Lapis). After losing a match with Team Gaim, he shakes hands with Kouta for being a strong player as a part of the sportsmanship and someday have another match with him.

Upon Peko suddenly going insane and turning into New Generation Rider Kurokage Shin, Kaito overheard the ruckus and rushed to stop his recently insane friend from killing Zack. Shortly when Kurokage Shin dies from an unknown black plant enveloping him, Kaito and Zack witnesses Lapis as a suspect, leading both of surviving Team Baron's Riders to hunt him.

Once he and Zack find Lapis and threaten him for what he did to Peko, Kouta arrived to break them off to warn them about a bigger threat. However, Zack is the next victim of the black plant's insanity. When he is about to kill Lapis while Kouta and Kaito tries to calm him down, but to no avail as Zack dies from the black plant, at same time Lapis disappeared from the scene.

When Zawame becomes a battle area between Charmant and Yggdrasill after Hase, Peko and Zack's sudden deaths, he joins the battle and sided with no one, battling Gridon, Zangetsu Shin and Bravo. Almost killed by Zangetsu Shin and Bravo's finisher, he is saved by Kamen Rider Marika.

Due to Marika throwing his Banana Lockseed to fake his death, he is one of the few surviving Riders (counting Ryugen and Marika) to confront Kougane/Kamen Rider Mars, who apparently brainwashed Kouta into being his servant to attack the surviving soccer world's Riders, until Lapis breaks him free. With most of the Riders brought back to life, Lapis obtains a Sengoku Driver to transform into into Kamen Rider Kamuro as the Riders battle Kamen Rider Mars Flamed-Horse Position.

Personality
In the Soccer World, with his memories altered, Zawame City wasn't engulfed by Yggdrasill to the extent where they focused on researching Helheim, as the world wasn't connected to Helheim, allowing Kaito to believe that he had lived a different life. While similar to his original personality in the sense that he believes in honor, chivalry, and strong opponents, he is open to admit that he was bested by another opponent. He also wears a different outfit than his traditional Team Baron clothing, hinting that he's well off in the Soccer World compared to the original world where his clothes remained roughly the same and the majority of his luggage being a few bags that he took with him to the Helheim Forest.

Devices

 * Transformation devices:
 * Sengoku Driver - Primary transformation device
 * Genesis Driver - Secondary transformation device
 * Lockseeds - Gives access to Baron's Arms changes, depending on which lock is used

Weapons

 * Arms Weapons
 * Banaspear - Baron Banana Arms' personal weapon
 * Sonic Arrow - Baron Lemon Energy Arms' personal weapon

Vehicles

 * Lock Vehicles - Vehicles that unfold from special Lockseeds:
 * Rose Attacker - Kamen Rider Baron's main Rider Machine
 * Team Baron motorcycle

Portrayal
Kaito Kumon is portrayed by Yutaka Kobayashi (小林 豊). As Kamen Rider Baron, his suit actor is Eitoku (永徳).

Appearances

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