(Percy is seen in his house as he holds a picture of his deceased brother.)

Percy: Brother... I swear I'll avenge your death...

???? 1: You're her son, right?

Percy: Huh?

(Percy turns to see two male individuals.)

Percy: Who are you, and how do you know about my mother?

???? 1: I'm just a passing through Kamen Rider who travels Space & Time, remember that.

???? 2: And I'm the Strongest Ranger alive.

???? 1: As for how I know about you, let's say... I met her when I was young.

???? 2: So did I, and I must say... I never knew she could be such a slut, abandoning her own children, and even let one of them die.

Percy: And that's why I want to make her pay. What are your names, by the way?

???? 1: Ethan Frederick, at your service.

???? 2: My name is Okuyasu Senki.

Percy: Hmm... I'm...

Ethan: Percy Howard, son of Thomas Howard and Nancy Olsen Howard. The newest hero of both Daikaiju-Verse and Megaforce-Verse known as Kamen Rider Birthright.

(Percy gets shocked for both Ethan and Okuyasu knowing his name. Suddenly the alarm goes off, and Percy clicks a button, showing a panel of Rumlow rampaging through Lagos.)

Percy: Rumlow is rampaging through Lagos.

(Then he turns to see Ethan and Okuyasu walking away.)

Ethan/Okuyasu: (in unison) Shouldn't we stop him?

(Timeskip)

(In Lagos, Percy is ready to transform along with Ethan and Okuyasu.)

Percy/Ethan: (in unison) Henshin!

Okuyasu: It's Morphin' Time!

TRUTH! JUSTICE! AMERICAN WAY! KAMEN RIDER BIRTHRIGHT!

KAMEN RIDE: PRIMORDIAL!

RAINBOW RANGER!

(They transform into Birthright, Primordial and Rainbow Ranger as they jump and prepare to face seven Neo H.Y.D.R.A. Soldiers.)

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

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

Rainbow Ranger: I am the Monarch of all Super Sentai & Megaforce Heroes, and no one can stand against my powerful might. RAINBOW RANGER!

Birthright: Okay, we got seven hostiles.

(Primordial simply pulls out a Daikaiju Card.)

Primordial: I get the gist of it!

DAIKAIJU RIDE: TITANUS VIRGO!

(Primordial turns into Titanus Virgo and shoves three Neo H.Y.D.R.A. Soldiers with a tail swag.)

Primordial (T. Virgo): Now it's four.

(Then the four Neo H.Y.D.R.A. Soldiers split up as Rainbow Ranger pulls out a Megaforce Key, but Primodial throws a Daikaiju Ranger Key for him to pick it up.)

Primordial: Use this one instead!

Rainbow Ranger: (nods) Senki Change!

ALOLAN DAIKAIJU WARRIORS!

(Rainbow Ranger becomes Aeon, and both he and Primordial (Titanus Virgo) split up to find the Neo H.Y.D.R.A. Soldiers while Birthright jumps off and flies to search for Rumlow. Rainbow Ranger (Aeon) glides as he sees two of the Neo H.Y.D.R.A. Soldiers.)

Rainbow Ranger (Aeon): I got the two on the left.

Birthright: (intercom) They ditched their gear. It's a shell game now. One of them has the payload.

(Someone throws a bomb at Birthright. It sticks on one of his wings. Birthright throws it in the air and the bomb detonates safely away from citizens. Rumlow jumps up, grabs him and slams him down.)

Rumlow: There you are, you son of a bitch. I've been waiting for this!

(Meanwhile Primordial (Titanus Virgo) is still chasing the other mercenaries. He flies up and takes out his two, then searches their bags for the payload.)

Primordial (T. Virgo): He doesn't have it. I'm empty.

(Rainbow Ranger is seen gliding as he sees one of the two Neo H.Y.D.R.A. Soldiers.)

Rainbow Ranger (Aeon): Hydro Blast!

(He blasts the Neo H.Y.D.R.A. Soldier away before he lands on his feet. Then, the other soldier produces the vial.)

Neo H.Y.D.R.A. Soldier: One step, and I'll drop it.

(Suddenly an announcement is heard.)

RISING IMPACT!

(Zero-One dashes at the Neo H.Y.D.R.A. Soldier and kicks through him as Rainbow Ranger (Aeon) catches the vial.)

Rainbow Ranger (Aeon): Payload secure. Thanks, Aruto.

Zero-One: Why did the Kaiju Pikachu start a fashion line?

Rainbow Ranger (Aeon): I don't know, why?

Zero-One: Because it wanted to be an "Electrifying Kaijulinary trendsetter." Now that's a work of Aruto Hiden.

(An awkward silence happens.)

Rainbow Ranger (Aeon): Yang's puns are a little... better than yours.

(Birthright is seen fighting Rumlow, but neither of them is gaining the upper hand.)

Rumlow: Come on!

(Rumlow pins Birthright to a building, and then prepares to punch him, but Birthright grabs his hand and beats him before kicking him down.)

EAGLE PUNCH!

(Birthright punches through Rumlow with a powerful punch, making the turtoise kaijun scream in pain as he explodes.)

Birthright: I'll stop all monsters my mother had created.

(Unbeknownst to him, Kamen Rider Dark Primordial and Black Dragon Ranger are seen watching him from a rooftop.)

Dark Primodial: Damn it, can this get worse.

B. Dragon Ranger: Unfortunately yes, our archenemies Primordial and Rainbow Ranger are here too.

Dark Primordial: We gotta warn Nancy immediately.

B. Dragon Ranger: Right! 

(Then a dimensional gap opens and the duo leaves as the chapter ends.)

A/N: Aeon, Primordial and Titanus Virgo belong to KaijuMaster20 while Rainbow Ranger belongs to MarvelousSanazuki