"If Heroic Spirits are those that are known as legends by history…then Kamen Riders can be considered those who create the legends remembered by it."
— Olga Marie Animusphere/Kamen Rider Zi-O
Next Grand World is a Fate/Grand Order and Kamen Rider Zi-O fanfiction crossover story by BigHead98.
The Olga Marie Animusphere of one timeline was betrayed by someone she held dear, which led to her death before she could prove herself. A world where the machinations of Beast I destroyed humanity's future. A world where Chaldea saved humanity's future.
Yet, Olga Marie Animusphere also lived another life in another time. Her dream was to rule over all, to become a queen. It was the Demon Queen of Time who ruled over humanity's future in that world and with everyone's sacrifice, she brought a new future to that world.
Now, with both worlds saved and becoming one, Olga must figure out the truth behind a new conspiracy that will decide the fate of the world before it is too late.
This fic can be read on Archive of Our Own here
, Fanfiction Dot Net here, and Spacebattles Dot Com here.
Next Grand Order contains examples of:
- Adaptational Badass: Olga in the canon of Grand Order, while being considered a high-class Magus on paper, has zero compatibility as a Master and was quite incompetent in the role of Director of Chaldea. Here, she's not only a Kamen Rider, but also quite possibly the most powerful one in the history of the franchise.
- Big Damn Heroes: Olga arrives just in time for Anastaia’s invasion of Chaldea to save most of the already purged staff, before preventing the destruction of the building itself by teleporting it in a different time zone.
- Borrowed Catchphrase: When first introducing herself as Kamen Rider Zi-O to others in the story, Olga uses Kamen Rider Decade's famous catchphrase.Kamen Rider Zi-O: Just a passing-by Demon Queen, remember that! Wait, no…doesn’t work like how he does it. Note to self: better to come up with my own thing for the future.
- Brains and Brawn: Finis is the Brain (The Spymaster who utilizes undercover work and subterfuge) to Viktor's Brawns (Frontline General who leads and organizes fighters for on the field battles).
- Brought Down to Badass: Teleporting the entire building of Chaldea caused Olga to lose the power to transform temporarily.
- Clones Are People, Too: Discussed between Caster and Rider Da Vinci in Chapter 5.
- Co-Dragons: Finis and Viktor are this to Atalante Alter, the leader of the resistance of the Russia Lostbelt.
- Composite Character: Olga Marie Animusphere takes the place of Sougo Tokiwa as Kamen Rider Zi-O, having gone through his life and adventures before returning to her original world with her memories of her time as Zi-O fully intact.
- Drama-Preserving Handicap: It is very clear that if Olga had full access to the power of Oma Zi-O from the start, there would be no story, so Olga outright loses her ability to turn into Zi-O by the end of Chapter Two.
- Early-Bird Cameo: Chapter Four showcases the first six Lostbelt Kings far before their canon appearances.
- Easily Forgiven: Olga easily accepts the apologies of the two Chaldea employees who thank her for saving their lives for insulting her back when she was the official Director of Chaldea.
- In Spite of a Nail: Rider Da Vinci still wakes up from her sleep even though Caster Da Vinci doesn't die at the hands of Kotomine in this timeline. This is due to Olga shifting time to save Chaldea from the Cypher invasion.
- Internal Reveal: Olga is informed of the events of Observer on Timeless Temple after her "death" in Singularity F by Da Vinci, Mash, and Ritsuka: the Seven Singularities, the 72 Demon Pillars, Lev actually being Flauros in disguise, the Beasts of Calamity, Romani’s true identity as King Solomon, who had his body stolen by Goetia, Beast I.
- I Owe You My Life: The remaining staff of Chaldea certainly feel this way towards Olga, something made more potent given the 0% Approval Rating she had prior to becoming Zi-O.
- Just One Second Out of Sync: How Olga managed to save Chaldea from being destroyed, though at the cost of being able to transform for quite a bit.
- "Not So Different" Remark: How Olga convinces Goredolf to give being co-directors of Chaldea a chance instead of outfight returning the position back to her: both of them were inept in the position they were ill prepared for while being manipulated by someone they trusted on behalf of their enemy.
- Obsessed with Food: The first thing Mordred did when summon back to Chaldea was demand food, with her first scene in the story devouring a plate full.
- Other Me Annoys Me: Caster Da Vinci lives long enough to meet her Rider self...and immediately finds her quite the pest from their very first interaction.Caster Da Vinci: ...Is this what everyone from home had to deal with back in the day?
- Point of Divergence: Olga becoming Zi-O and entering the story changes quite a few things:
- She's able to arrive at the Chaldea building just in time for the Cypher's invasion, preventing its destruction at their hands. This also causes Chaldea to completely miss Kirschtaria's message to Earth as it was bleached.
- Da Vinci in her Caster form avoids dying at the hands of Kotomine Kirei thanks to Kamen Rider IXA spotting him before it was too late.
- She Is the King: Played With: while she considers herself the "Demon Queen of Time", she is still known as Kamen Rider Zi-O, which translates to "Time King".
- The Spymaster: Finis acts as this on behalf of the resistance of the Russian Lostbelt, described as having eyes everywhere.
- So Proud of You: Olga expresses this towards Ritsuka, encouraging him to take pride in the fact that he managed to completely prove her wrong about his capabilities as a mage.
- Time Master: Olga has officially had her "coronation" to ascend as the Demon Queen of Time, with her control over time manifesting in various ways throughout the story. It is even heavily implied that she managed to combine the history of Kamen Rider with Proper Human History while she was Oma Zi-O.
- Took a Level in Badass: Unlike the Nervous Wreck who was described as two steps behind of everything by her own underlings before her death, Olga returns to Chaldea far more powerful and a stronger force of personality.
- Took a Level in Kindness: Compared to how much of a Mean Boss she was in Part I of Grand Order, Olga is much more polite, kind, and courteous to the people around her.
- Wham Shot:
- Chapter 3: the person who comes from behind Sherlock is none other than Rider Da Vinci.
- Wham Line:
- Chapter 6 has two near the end:
Paxti: No other creatures native around our homeland have dates on their body.Olga: Geiz? Tsukuyomi?- Chapter 7 has Olga save a figure in robes. Later, after visiting Gerturde's burial site, she brings Olga to a more private spot where she reveals her name: Finis.
