Ace Ukiyo/Ace of Heart

is the main protagonist of Kamen Rider Geats: 4 Aces and the Black Fox. He is one of the four iterations of created by Mela who transforms into .
==History==
When Mela split the world into 4 as part of the World Destruction Game, Keiwa Sakurai ended up in a playground, finding the Ace of Heart playing an ocarina. However, it was initially unknown what aspect of the original Ace he represented. The two were eventually attacked by the Jyamato after the worlds were recombined, and despite his physical weakness when he attempted to fight back, the two of them were able to escape to the DGP lobby. He was the only one of the four Aces left standing, as Mela had used the powers of the Aces of Power, Wisdom and Luck to create the XGeats Buckle, and considered him not worth using as part of his plans.
To prevent him from fighting against Mela, given his lack of combat prowess, he was tied up by Tsumuri, however, Ittetsu Tanba freed him, recognising that he still held the same moral strength, even if he couldn't fight nearly as well as the original Ace. He made his way to where Keiwa and Michinaga were fighting Mela, and attempted to fight him, but was quickly knocked out of transformation. Despite the overwhelming odds, he refused to give up, and Keiwa realised that this version of Ace, despite lacking his strength, wisdom or even his luck, represented something different: his heart, and his determination to keep fighting, no matter what. 
When Mela used his finisher and the Jyamato World Tree to destroy the world, his friends, realising what he represented, protected him, and their wishes, along with their memories of the inspirational things he had told them before, caused the Geats Core ID to evolve into the Geats Oneness Core ID. He was later found alive by Tsumuri, albeit the last remaining Rider standing, who told him that it was his friends' wishes that had saved him, and not to give up yet on their hopes, giving him the Oneness Raise Buckle, and a Ride Chemy Card, that Ittetsu had received from Houtaro Ichinose earlier.
Eventually, Ace confronted Mela and Melo with his new powers, declaring that the strength of one person cannot be measured through just their physical strength, their smarts, or their luck; but by their heart, and all the people who stand by them. Ace eventually gained the upper hand as Geats Oneness, but Mela was turned into a giant form by Melo, and he was seemingly defeated. However, his resolve allowed his friends to appear at the last minute, launching him into Mela and sending him flying out his ship, before Ace sent him back into the Tree, and finally finished him off.
==Personality==
Ace is split into four distinct clones when the Earth was divided. Each clone is based on an aspect of his personality, with this particular one representing his determination to fight. His refusal to give up despite the difference in power between him and Mela made Keiwa and his other friends conclude that, despite him not having the strength to fight his enemies, the brains to fool his foes, or even the luck to attract victory, the Ace of Heart is definitely their Ace. Heart is the one who obtains the power of Geats Oneness to defeat Mela.
==Powers and Abilities==
===Abilities===
*Indomitable Will: Ace of Heart possesses the original Ace's willpower that kept him from giving up even when all odds were against him. This ultimately led to him to obtaining Geats Oneness, allowing him to defeat Mela.
===Former Weaknesses===
* Poor Combat Efficiency: Initially, Ace of Heart is shown to be extremely weak, unable to hold off the Pawn Jyamato untransformed, something which the original Ace could. However, after achieving Geats Oneness, he is able to fight in par with, and eventually triumph against XGeats.
==Forms==
==Equipment==
===Devices===
*Desire Driver - Main transformation device
**Geats Core ID
***Geats Oneness Core ID
*Raise Buckles - Transformation trinkets
*Raise Buckle Holder - Carrying strap for Raise Buckles and weapons
*Kamen Rider Geats (Oneness ver.) Ride Chemy Card - Transformation trinket for Geats Oneness
===Weapons===
*Magnum Shooter 40X - Magnum Form's main weapon
*Geats Buster QB9 - Geats Oneness's main weapon
==Relationships==
===Allies===
to be added
===Enemies===
to be added
==Behind the Scenes==
===Portrayal===
*Ace of Heart is portrayed by who also portrays the original as well as his other three iterations. As Kamen Rider Geats, his suit actor is ,
==Notes==
* Ace of Heart's identity was initially hidden throughout the movie trailers, with his aspect only marketed as "Ocarina...?" and "????"
==Appearances==
* Kamen Rider Geats
**Kamen Rider Geats: 4 Aces and the Black Fox
==External Links==
to be added
==Navigation==
Category:Reiwa Era Riders
Category:Geats Characters
Category:Geats Riders
Category:Movie-exclusive Characters
Category:Heroes
Category:Movie Riders
Category:Primary Riders
Category:Temporary Riders