There are many outstanding mysteries in theKingdom Heartsfranchise. As its story uses a compounding narrative approach, every entry contributes something to the series’ overarching lore. This has irritated its fair share of fans and contributes to new players struggling to penetrate later games. Still, when someone recognizes a detail brought up in a laterKingdom Heartstitle as something from an earlier one, there is a sense of pride in keeping up with thefull picture that isKingdom Hearts.Kingdom Hearts 3andKingdom Hearts Union Crossin particular have left many threads dangling forKingdom Hearts 4and other games to pick up.
One of the most detailed mysteries so far is the Nameless Star found inKingdom Hearts 3’s Final World. Sora, and later Kairi and Riku inMelody of Memory, stumble across this soul clinging on to existence. She tells the heroes what she knows about Quadratum, and asks Sora to help Yozora - whose heart is said to not be his own. The Nameless Star cannot help any further, as her heart and identity have been stolen.Kingdom Hearts 4is expected to divulge more on this enigma, but according to series director Tetsuya Nomura, fans have already met the Nameless Star in another life.
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The Girl from Verum Rex
Previously, a common guess for the Nameless Star’s identity was the dead Strelitzia fromKingdom Hearts Union Cross. That theory has since been shot down by her appearance in theKingdom Hearts 4reveal trailer. All that fans know about the Nameless Star is that they knew Yozora, are from Quadratum, and the Star is an existingKingdom Heartscharacter. Its most likely identity is the girl seen in the Verum Rex game trailer at the start ofKH3’s Toy Story world. This girl is seemingly being kidnaped by the Gigas forces, likely a metaphor for how she ended up in the Final World. However, as the Quadratum cast has not been detailed yet, this connection doesn’t give fans a lot to work with.
Subject X
It would not be aKingdom Heartsmystery without several compounding layers. A girl of around fifteen years old ismentioned in the Secret Reportsand side cutscenes ofKingdom Hearts 3. This young woman, only referred to as Subject X, was an amnesiac found in Radiant Garden during Terra-Xehanort’s time as an apprentice of Ansem the Wise. She was initially unable to speak, but eventually began to regain patches of her memory, describing her home world like it was a fairy tale, and recalling four friends and a key. She also remembered the phrase, “May your heart be your guiding key.”
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Several people, including Lea, Isa, and Xehanort, all took an interest in Subject X. Lea and Isa wanted to break her out, while Xehanort ran tests to help her recover her memory so that he could get his own back. Before Xehanort could perform an experiment that risked mental fracture, Ansem found out about his inhumane practices and ordered the release of all subjects. The last sighting of Subject X was of her being taken away from her cell byBraig, Xigbar’s human formwho is later revealed to be Luxu. Luxu is the only character who could feasibly send someone along the same path to Quadratum as the Master of Masters, so Subject X could have become the Nameless Star in the years betweenBirth by SleepandKH3.
Master Ava
None of that means these two mystery characters are the same, but it does highlight the only two named and missing young women inKingdom Hearts. The first is the Foreteller Ava, one of the ancient Keyblade Masters fromKingdom Hearts Union Cross. She is anapprentice of the Master of Mastersand the founder of the heroic Dandelions. She is also the only Foreteller not accounted for, with the other four Foretellers, Luxu, and seemingly the Master of Masters appearing in secret videos at the end ofKingdom Hearts 3. Ava’s absence is excused by Luxu saying she had already fulfilled her purpose, but what that means is unknown.
Subject X’s statements about her memories point squarely at her being aUnion Crosscharacter. The plot synopsis for the originalKingdom Hearts Chiexplicitly calls the original conjoined world one of fairy tales, matching Subject X’s description. Theother four Foretellers cleanly slot inas four friends, and Luxu would not be included due to their last interaction being violent. Ava is also not much older than the young Keyblade wielders she led. This, combined with her lack of an unmasked character design, marks her as a suspect for being Subject X and/or the Nameless Star. Luxu wanted the Foretellers to remain hidden until the right moment, so even if Ava is not Subject X, she may have been sealed in Quadratum and eventually became the Nameless Star.
Skuld
The other likely suspect to be Subject X and the Nameless Star is Skuld, one of five Union Cross leaders who survived the ending ofKingdom HeartsUnion Crossand traveled to a different time and place. She could have lost her memories in the same way Ventus did. That said,Skuld’s appearance inUnion Crossdoes not match the Verum Rex girl’s, even if the introduction of swapped hearts means that isn’t a major concern. Subject X was last seen with Braig, and even if he recognized Skuld it’s doubtful he would go so far as to seal her in Quadratum. Due to her situation, it makes sense for Skuld to be Subject X, but that leaves the Nameless Star and the Verum Rex girl unaccounted for.
If either Ava or Skuld was stripped of their memories by Luxu, sent to Quadratum, and then killed via the removal of their heart, they would have become the Nameless Star. The only other pertinent detail is that the Master of Masters intends for Ava to be possessed by one of the remaining seven Darknesses. Her strong heart should resist its influence and allow light to easily destroy it, but that process could separate her heart from her body likeVanitas’ first death did for Ventus. Ava could have been the guinea pig for this and became the Nameless Star. Skuld has evidence pointing toward her being Subject X and no one else. These mysteries will be debated in the fandom until answers are given, and hopefullyKingdom Hearts 4will be the game that makes things clear.
Kingdom Hearts 4is in development.
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