[FairyKing]

While I don't normally care much for anniversary-crossover stuff, I had an idea for one that seems kind of interesting:

Kamen Riders protect this world from evil... but what of the reverse? In a world where wicked heroes hunt innocent monsters, there is still one Kamen Rider with a heart of justice! Reiwa reversed: Kamen Rider Verze!

Unlike Zi-Oh with its monstrous Another Riders, this series uses Reverse Riders as the villains, with the same heroic designs but new color schemes based on photo negatives, and their personalities are based on their original selves but twisted to be villainous:

"There's only one person who can stop me... you."
- Reverse Aruto is the spoiled nepo-baby head of Hiden Intelligence, who is known for his cruel sense of humor and views everyone around him, human or Humagear, as little more than toys for his amusement.

"I've decided I'll be the one who ends this story."
- Reverse Touma is a famous horror and tragedy author who secretly commands the Sword of Logos, always follows through on his threats, and decides the fate of others as if they're characters in his books.

"I'm burning like hell! Let's go at once!"
- Reverse Ikki is "Japan's number one egoist" who forces his way into everyone's issues to make it all about himself, rapidly rising the ranks of the dystopian organization Fenix in his desperate search for approval.

"I am the highlight."
- Reverse Ace is the reigning champion of the Desire Grand Prix, a consummate liar who doesn't care who he has to betray or how corrupt the DGP is so long as he can continue his winning streak and superstar lifestyle, with ambitions to become a god.

"I gotcha!"
- Reverse Houtaro is a high schooler and alchemy student who likes Chemies more than humans and wants them all to be his friends and his alone, even getting violently jealous when a Chemy partners with someone else.

Meanwhile, Kamen Rider Verze is a passing-through hero with amnesia but who remembers that Kamen Riders are supposed to be allies of justice, and fights to help the various monster groups he encounters against the Riders who oppress them. After winning the trust of a powerful monster, Verze can copy their power onto a Monster Card and use it in the ReiVerze Driver to access a form based on those monsters, but with a more heroic and Rider-esque aesthetic.

- "Magia Reverse! Mestubojinrai justice!"
Reverse Magia are abused Humagears who've gained the power to stand up to their owners, thanks to the underground resistance group Metsubojinrai.net who fights for equal rights with humans.

- "Megid Reverse! Alter the story!"
The lead Reverse Megid are ancient sages who want to free the Almighty Book from the Sword of Logos's control so that people can make their own fates instead of being predestined.

- "Deadmans Reverse! Gracias, Gif!"
Reverse Deadmans are a spiritual movement who advocate making peace with your inner demons, and protest against Fenix's brutal repression of anything they deem "sinful."

- "Jyamato Reverse! Jyamar Garden growing!"
Reverse Jyamato are peaceful plantlike creatures, created to be hunted for sport in the cruel and unfair Desire Grand Prix, and they try to learn from humans in hopes of winning their freedom.

- "Malgam Reverse! Be dyed in gold!"
Reverse Malgam are formed when a Chemy resonates with a human's kindness and forms a bond with them, but the Alchemist Union hunts them to keep the power of alchemy for themselves.

Since Gavv has only just started, I don't have a good enough sense of Shoma and the Granutes to make their Reverses yet, although I think the Granute henshin catchphrase will be "Granute Reverse! Stomach full of love!"

Anyway, the second rider is Izant, a secretary-type Humagear who tried to be a conscience for Aruto but was cast aside and rescued by Verze. It's ambiguous whether she's a counterpart to Izu or Azu, but she transforms into Kamen Rider Minus-One.