(Percy is seen in a book store as he is planning to buy a book as he fails to notice Isaac and Storious watching them from afar.)

Isaac: There he is.

Storious: His story will soon end!

(Inside the book store, Percy sees a book which catches his interest. It's named "Megaforce Brawlers: True Heroes of Musutafu".)

Percy: Hmm, this book seems really interesting. I'll buy it.

(Percy buys the book, and then he goes outside as he starts reading.)

Percy: Megaforce Brawlers: True Heroes of Musutafu is about a young boy known as Dratini Hidari, who got taken away from his family by the Yagis and abused by them, except for Toshinori Junior. One day, he was rescued by a group of superheroes composed of Kamen Rider ZO, Ultraman Powered, Victory 2 Gundam, Kamen Rider Ixa, Fighter Roar, etc. (keeps reading) Hmm, so he is the son of Shotaro Hidari and has a crush on Mina Ashido. Hell yeah, baby. And they even got help from other heroes as well.

(As Percy finishes reading the book, Isaac and Storious come in.)

Storious: I hope you have enjoyed reading that story, because yours will soon end.

Isaac: And there's nothing you can do to stop us!

OMNI FORCE!

DENSETSU NO SEIKEN TO ERABARESHI HON GA MAJIMARU TOKI, IDAI NA CHIKARA O TOKIHANATSU!

GRIMOIRE!

WHEN THE HOLY SWORD AND THE BOOK INTERSECT, REWRITE THE WORLD.

Isaac/Storious: Henshin!

OPEN THE OMNIBUS! FORCE OF THE GOD! KAMEN RIDER SOLOMON! FEAR IS COMING SOON!

OPEN THE GRIMOIRE! THE END OF THE STORY! KAMEN RIDER STORIOUS! FUHAHAHAHAHAHAHAHAHAHA!

(They become Kamen Rider Solomon and Kamen Rider Storious.)

(Percy isn't fazed at all as he pulls out the Eagle Trinket and the MiraiDriver is summoned as he prepares to transform.)

Percy: Henshin!

TRUTH! JUSTICE! AMERICAN WAY! KAMEN RIDER BIRTHRIGHT!

(Percy becomes Kamen Rider Birthright.)

Birthright: For truth, justice and the American Way! Kamen Rider Birthright!

(Then Birthright starts fighting both Solomon and Storious, not knowing that a drone is watching them.)

(Meanwhile at Neo H.Y.D.R.A.'s Headquarters, Nancy is seen watching her former son fight the two evil riders until both Lance and Heinrich come in.)

Nancy: Any update?

Lance: Our archenemies have decided to help your so-called son.

Nancy: Describe them.

Heinrich: One is Lance's archenemy and one of the Kings of Daikaiju-Verse. The other is my archenemy, known as the strongest Ranger alive and one of the Monarchs of Megaforce-Verse.

Nancy: Hmph, Ethan Fredrick & Okuyasu Senki are my exes, because they rejected my feelings before I met my husband back then.

Lance: They've got some nerve...

Heinrich: I hate them!

(Back to the fight, Birthright is holding his own against both Solomon and Storious until the former slashes him.)

Birthright: Damn it...

(Suddenly the dimensional gap appears as both Ethan shows up.)

Ethan: So you're still planning to destroy the world. If I wanted, I'd show you how it's really done!

Solomon: (glares) And who might you be?

Ethan: I'm just a Passing through Kamen Rider who Travels Space & Time, Remember that.

(Ethan then pulls out a card and prepares to insert on his driver.)

Storious: Wait, you're that pink Kamen Rider's descendant?

Ethan: Not exactly... Henshin!

KAMEN RIDE: PRIMORDIAL!

(Ethan becomes Primordial.)

Primordial: I am the King of all Kamen Riders & DaiKaiju Heroes, and no one can stand against my powerful might. KAMEN RIDER PRIMORDIAL!

Solomon: Time to dethrone you then.

Primordial: (pulls out a card) Try me!

KAMEN RIDE: KABUTO! CHANGE BEETLE!

(Primordial becomes Kamen Rider Kabuto, much to the two riders' shock.)

Primordial (Kabuto): Leave those two bozos to me, Percy.

Storious: (stern) Bozos? I'll show you bozo!

Primordial (Kabuto): (pulls out another card) I'll finish this in less than one second!

ATTACK RIDE: CLOCK UP!

(Everything goes slow, minus Primodrial (Kabuto), who then dashes at the two evil Riders and punches Solomon 50 times before kicking Storious 50 times. Then both are sent sprawling as Birthright approaches Primordial (Kabuto), and they nod in agreement as they prepare their finishers.)

EAGLE KICK!

FINAL ATTACK RIDE: K-K-K-KABUTO!

(The two evil riders get up, only to be hit by both Riders' kicks, and then they are forcefully reverted back to normal.)

Isaac: (weakly) Kneel before me...

Storious: (weakly) Is this a new story? Even so, the world will end...

Birthright: Just as Saber would say...

Primordial (Kabuto): Only we get to decide how this story ends.

(Back to Neo H.Y.D.R.A.'s Headquarters, Nancy slams her fist angrily.)

Nancy: (growls in anger) ... ETHAN FREDRICK! I WILL KILL YOU FOR REJECTING MY FEELINGS SINCE HIGH SCHOOL!

(As the screen fades out, Birthright flies away with a sign which says "To be continued".)