Peko (ペコ Peko) is a member of Team Baron. In the Kamen Rider Gaim summer movie, he transforms into Kamen Rider Kurokage Shin (仮面ライダー黒影・真 [クロカゲ シン] Kamen Raidā Kurokage Shin, lit. "True Black Shadow"). After Zack left for New York, Peko became the new leader of Team Baron.
He is loyal to Kaito, but cheats to help Team Baron win at the Inves Games. The reason he cheats is because he loves dancing, but since Inves Games were getting popular before the Beat Riders teams were branded pariahs, he cheated to make the Inves Games go by faster so he can go back to dancing.
Upon Team Gaim wanting to put an end to the Inves game by gathering all Beat Rider Teams to retain their public images rather than being treated as outcasts by the people of Zawame, Peko, along with Zack show their good sides that they want to dance to make people happy.
Peko is a dance lover, dancing is his passion. His sister Azami once formed a dance team which he and later Zack joined. That team was later taken over by Kaito Kumon, forming the dance group Team Baron. Mai Takatsukasa had invited him to join Team Gaim, but Peko declined and joined Team Baron instead, because he wanted to be with the top group.
During the course of the series, he helps cheat in the Inves games with a slingshot, disarming the Lockseed user and causing them to forfeit due to being unable to control their Inves and causing Team Baron to stay at the top of the ranking. Later, during the Beat Rider scandal, he is injured by Oren, causing Kaito to back off from his fight with Oren. Peko later shows his disapproval when Kaito refuses to join the Beat Rider All-Team Dance Show, but later goes when Kaito resigns from being Team Baron's leader. Peko, along with Zack, defends the city in the event Kouta isn't available, providing backup to Zack, aka Armored Rider Knuckle.
When an Inves army led by the Over Lords are invading Earth, Peko, Jonouchi, and Mai unable to find anything on Zawame City but a related compromise of Yggdrasill thanks to Ryoma's communication jam. With all resistance members agreeing with Mai to use communicators, Peko and the other alliances spread out to get the civilians to safety. When hearing that Mitsuzane was not just Takatora's brother, but had also sided with a villain like Ryoma, Sid, then Over Lord (mostly Redyue), Peko, Zack and Hideyasu got pissed off immediately when hearing about it.
While Peko and Mai went shopping for food in an abandoned mart, they were confronted by Mitsuzane. Curious about Mitsuzane's change in attitude, he is met by the latter calling him "scum" and tried to tell Mitsuzane to leave Mai alone after he harasses her before being attacked by the Over Lord Shinmugurun, forcing Mai to follow Mitsuzane. As Mitsuzane and Shinmugurun successfully kidnap Mai, a brutally injured Peko attempts to call for help. However, his microphone recording the incident prompts Kouta and Kaito to rush to Peko's aid who attempts to tell them that it was Mitsuzane before being left in Kaito's care as Kouta goes after Mitsuzane.
After Ryoma reveals his plan to reclaim Yggdrasill from the Over Lords, Peko had volunteered to go, but due to his injuries his friends forced him to stay and rest.
When Mai returned but implanted with a Golden Fruit by Rosyuo, Peko still considers Mitsuzane a traitor until Ryoma arrived to take her to a hospital with his and Chucky's aid to take her there. When the two are locked in a room in the abandoned hospital, the two escape the hospital through the window by using bed sheets as a rope.
Once they escaped from Ryoma and Mitsuzane, he and Chucky found a supposedly dead Kouta and takes his body to the Team Gaim's garage until, he is healed by Mai (now as the Woman of the Beginning) in his mind. Upon learning that Kaito became an Over Lord after killing Ryoma, and then proceeded to eliminate Gridon and Bravo by destroying their transformation belts. and Zack goes undercover to stop their old friend's reign is sent by Zack to secretly to send a letter to Oren at Drupers, about a plan to stop Kaito. He, along with most of his friends and survivors are soon evacuated by the Japanese Defense soldiers, leaving Kouta and Zack in Zawame to stop Kaito themselves.
Three months later after Earth is saved and Kouta and Mai (now as the Persons of the Beginning) left the planet, Peko is seen dancing with other Beat Riders.
Another three months later, when the Beat Riders forgives Mitsuzane and offers him to come back but he still refused, Peko reminds his Beat Rider friends about Mitsuzane's sin six months ago until Zack tells them to give the young Kureshima time to redeem himself alone more.
After the Megahex incident, Peko was entrusted by Zack to take care of Team Baron for him, since he is planning to go to New York to pursue his dream as a professional dancer. After Zack left for New York, Peko and his teammates are somehow missing, when at the same time when the team known as Neo Baron emerged somehow. This causes Zack's trip to New York to be ended early, leading him to rescue his friend first.
The Golden Fruit Cup
In the alternate reality created by Lapis, Peko is a soccer player at Team Baron. After the match between Team Gaim and Team Baron, Peko begins to yearn for a Driver just like Kaito and Zack, as a small grasshopper lands on his body. Later, at Team Baron's meeting place, Peko confronts Zack, claiming him to be overly arrogant. Using a Genesis Driver and a Matsubokkuri Energy Lockseed which he obtained from somewhere, he transforms into Kurokage Shin and fights Zack. Kaito, who happened to witness this, transforms into Baron and tries to stop Peko. However, Peko is suddenly overwhelmed by plants growing all over his body. As he dies, he reveals that he wanted power so that he would not be looked down upon by the other members of the team.
Later, during the battle between Gaim and Mars, Peko and the other Armored Riders are rescued when Gaim slices through the Flame Horse with the Musou Saber. He joins the Armored Riders as Kurokage Shin in their battle against Mars.
Gaim Gaiden: Kamen Rider Knuckle
Peko was entrusted by Zack to take care of Team Baron for him, since he is planning to go to New York to pursue his dream as a professional dancer. After Zack left for New York, Peko and his teammates are somehow missing, when at the same time when the team known as Neo Baron emerged somehow. This causes Zack's trip to New York to be ended early, leading him to rescue his friend first. Zack later forgives Peko after telling him that Shura has forced him and his team to join Neo Baron as he couldn't forgive of Shura's sins for using the Team Baron name for his evil purpose. Peko removes the Genesis Core from Kaito's destroyed Genesis Driver in order to give it to Zack who transforms into Knuckle Jimber Marron to fight against Shura as Black Baron.
Like with the other New Generation Riders, Kamen Rider Kurokage Shin's forms are called Arms (アームズ Āmuzu). His Genesis Driver announces "Liquid" (リキッド Rikiddo) before every transformation.
By pushing the Genesis Driver's Seaboll Compressor into the Energy Lockseed after transforming from one to two times, Kurokage Shin can activate one of two finishing moves based on his current Arms form: Squash (スカッシュ Sukasshu) or Sparking (スパーキング Supākingu).
The Genetic Ride Wear (ゲネティックライドウェア Genetikku Raido Uēa) is Kurokage Shin's default form undersuit, which is briefly seen during Kurokage Shin's transformation sequence before the Armor Part attaches. 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.
|64px||“||Liquid! Matsubokkuri Energy Arms: Sei, Yoishō, Wasshoi!||„|
|~ Transformation announcement|
Matsubokkuri Energy Arms (マツボックエナジーアームズ Matsubokkuri Enajī Āmuzu, lit. "Pinecone Energy Arms") is Kurokage Shin's default pinecone-based armored Japanese Ashigaru form, as well as the evolved form of Kurokage. Accessed through the Matubokkuri Energy Lockseed, this form bears the Matsu Kabuto (マツカブト lit. "Pine Helmet") helmet with the Comb Eye (コームアイ Kōmu Ai) visor.
While assuming Matsubokkuri Energy Arms, Kurokage Shin dons the Matsubokkuri Energy Armor Part (マツボックエナジーアーマーパート Matsubokkuri Enajī Āmā Pāto, lit. "Pinecone Energy Armor Part") and his Arms Weapon is the Kagematsu Shin.
- Genesis Driver - Transformation device
- Lockseeds - Gives access to Kurokage Shin's Arms changes, depending on which lock is used
- Arms Weapons - Weapons that come with the Arms:
- Kagematsu Shin - Kurokage Shin Matsubokkuri Energy Arms' personal weapon