Trivia / Under Night In-Birth

  • Acting for Two: Both Eltnum and Uzuki are voiced by Satomi Akesaka.
    • Also, both Linne and Kuon are voiced by Ayane Sakura. Funnily enough, they're siblings.
    • There's also Sakurai and Young Seth, who are both voiced by Aimi.
  • Colbert Bump: Was initially a Cult Classic, but featuring it in BlazBlue: Cross Tag Battle did alot to boost its popularity, namely by introducing it to three much larger fanbases. The release of Exe:late[st] even moreso as it greatly expanded on the lore and characters that were mostly relegated to supplemental material.
  • Marth Debuted in "Smash Bros.": Both of the Guest Fighters, as there had not been a Melty Blood or Akatsuki Blitzkampf game released overseas at the time Exe:Late was released in western countries.note 
  • No Dub for You: It ultimately took an appearance in BlazBlue: Cross Tag Battle for the characters to get a dub.
  • The Other Darrin: Rather than Rio Natsuki voicing for Eltnum just like her Melty Blood counterpart, Satomi Akesaka takes over instead.
  • Relationship Voice Actor: Yuuki Kaji, Yoshitsugu Matsuoka and Saori Hayami would go on to reprise their respective anime characters in the later French Bread-developed fighting game with the same type of HD engine, Dengeki Bunko Fighting Climax. Satomi Akesaka along with one other person also narrate the official character tutorials for said game.
  • What Could Have Been: Eltnum "Sion" is apparently a built as a test case character for Melty Blood HD, a game whose development has never come to pass.
    • The devs have expressed interest in bringing in a Skullgirls character for a hypothetical future build of the game.
      • Specifically, a hypothetical sprite design for Filia has already been done as part of their congratulatory message to Lab Zero after the latter got their game released both in PC and in arcades. This must be in response to Yuzuriha's background cameo in their game.
    • Silvaria was originally planned to wield throwing knives when fighting.
    • Kaguya was first elaborated upon during a developer stream on upcoming characters where the likes of Chaos, Nanase, Wagner, Enkidu, and many others were shown off. Word of God states that Kaguya is taking longer than usual because they wanted to keep Kaguya's playstyle unique and not have a repeat of characters with weapons such as Noel and Petra.
    • Londrekia was going to be made playable and scrapped at the last minute twice. Once during production of the original version of UNIB, where he would've been a puppet character with a rapier and a coffin for his puppet, which were given to Chaos, Orie and possibly Uzuki respectively. The second time was when his design was finalized. As datamining shows, he was given introduction text (as seen on his character page) and a placeholder. To even further enforce this, the game review site Game Grin accidentally leaked Londrekia's character art, which has been since deleted off of the site, but the art can still be found around the web. It's currently up for debate as to whether he will be in the next version/installment or DLC in the possible future.
      • The last point was further enforced when the fighting game coverage site Shoryuken interviewed Kamone Serizawa, French Bread's battle planner. When asked if they are done with EXE: Late[st], Kamone responded that nothing has been set in stone but they are interested in adding more content to the current version. As to whether or not this will include Londrekia is up in the air.
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