Even after years of Kingdom Hearts games, there's a lot of ground for Kingdom Hearts 4 to cover. For as much as Kingdom Hearts 3 was dedicated to resolving the many plot lines running through KH up to that point, it also set up tons of questions that only a sequel could answer. The Black Box and the role of the Foretellers are two big question marks that will play into the upcoming Lost Master Arc. Sora's current location of Quadratum is another mystery, both in how it connects to other worlds in its own reality and how it relates to the usual one.

However, all of these pale in comparison to the most blunt teaser that Kingdom Hearts 3 could provide. Yozora, the protagonist of the fictional game Verum Rex seen in the Toy Story world, is real and connected to Quadratum. Furthermore, in the Kingdom Hearts 3 ReMind DLC, Yozora fights Sora with the outcome being either Sora frozen or Yozora fading away before waking up in a car. It's not clear how this relates to Kingdom Hearts 4’s trailer showing Sora waking up in Quadratum, but there's a good chance that Yozora will be heavily involved in Sora’s adventure.

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In A Series That Loves Questions, Yozora Is Made Of Them

There's a lot that fans don't know about Yozora, and it seems like his entire character was designed to facilitate questions. For one, he allegedly isn't even in his right body. According to the Nameless Star found in the Final World, Yozora's heart is not his own. What this means isn't clear, but hearts being transferred between bodies is something that's been going on since the first Kingdom Hearts. This and the Nameless Star’s lack of an identity implies that the villains’ usual heart-based machinations have been going on in Quadratum already.

Regardless of when Sora arrived in relation to these events, they've apparently already been affecting Yozora and the people around him. Yozora is seen in the Verum Rex trailer surrounded by several other people that resemble the Final Fantasy 15 party and Lunafreya. There's a good chance that these people, or characters based on them, will serve as the main cast of Yozora's story. It's not clear whether the Gigas mechs will have any relation to their side of the plot, or whether they are just metaphors for some other opponent. Once again, it's unknown if anything seen of the Verum Rex cast is accurate to their true appearances, leaving Kingdom Hearts 4 open to do what it wishes with these new characters.

Yozora Already Feels Like A Kingdom Hearts Protagonist

Kingdom Hearts 3 Re Mind Yozora

Yozora and his circumstances are mysteries, just like everything else in Kingdom Hearts 4. Some details will be revealed in said game, and some will probably be held back until later. The matter most relevant to KH4 is how much screen time will be devoted to Yozora in particular. At the moment, fans only know that Sora will meet up with a girl who is probably Strelitzia, and will continue his world-hopping and darkness-slaying within the new confines of unreality and Quadratum. A lot of time will be devoted to establishing Sora's new circumstances in Kingdom Hearts 4, but that doesn't mean the tale will be entirely his own. Yozora could serve as a second protagonist like Riku in past games, and even have entire chunks of gameplay and story devoted to himself.

One other detail that fans gleaned from Yozora's Kingdom Hearts 3 ReMind appearance is that he is the unreality equivalent to Sora. Plenty of parallels are drawn, including him repeating Sora's KH1 opening lines and being able to steal Sora's Keyblade and items. Kingdom Hearts has had a tendency to focus on alternate protagonists ever since Chain of Memories, and Kingdom Hearts 2: Final Mix included future protagonist Terra as a secret boss.

Put together, there is a clear intent for Yozora to have a major role in Kingdom Hearts, and frameworks have already been prepared for him to hit the ground running. With the franchise’s tendency to cut away to other characters intact, Kingdom Hearts 4 may give the bulk of its story over to Yozora, even while the gameplay still focuses on Sora.

Kingdom Hearts 4 is currently in development.

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