SEVERAL YEARS AGO

(In a house, a young boy is seen living with his (adoptive) parents as they are watching TV. Suddenly they hear some knocks at the door.)

Man: Huh?

????: (male stern voice) MR. MAVERICK! OPEN THE DAMN DOOR!

Woman: (eyes widen) Oh no, it's them.

Boy: Them who?

(Suddenly the door is burst open as the invaders are revealed to be Team STRQ.)

Woman: Run, Zen. Run!

Zen: (worried) But-

Woman: Do it, Zen, or they will kill you too.

(The young boy named Zen Maverick starts running as he turns to see his parents trying to defend him from Taiyang and Qrow. As he keeps running, Raven comes in, blocking his path.)

Raven: Where do you think you're going?

(Summer approaches Zen as well, and as they are about to grab him, a voice is heard.)

CLOCK UP!

(Suddenly a purple streak comes in and kicks both Summer and Raven away before dashing at Tai and Qrow, slashing their legs as he takes Zen away.)

CLOCK OVER!

(Summer and Raven crash into the wall while Tai and Qrow feel sharp pains in their legs. Summer gets up and notices that Zen is gone.)

Summer: The kid is gone!

(Tai, Raven and Qrow notice that too.)

Raven: But... but how?

Tai: (grunts) That could only be that Kamen Rider Sasword guy's doing.

(They then hear their scrolls beep as Summer answers hers.)

Summer: Sorry, Ozpin. We failed to get the kid.

Ozpin: WHAT?

Tai: Looks like Sasword rescued that brat from us. Luckily we killed his parents.

Ozpin: I see... we'll get him next time.

(Meanwhile at Monarch Building, a certain "Scorpion Rider" is seen carrying the crying Zen into his arms.)

Sasword: Don't worry, Zen Maverick... we will avenge your parents. I promise.

(He then reverts his transformation, revealing himself as Kataguri Serizawa, cousin of Jiro Serizawa.)

Kataguri: My name is Kataguri Serizawa.

(Over time, Kataguri taught Zen to defend himself from bullies, and then Zen met a girl named Rachel Smith.)

Rachel: I'm sorry for your parents.

Zen: Don't worry now, the ones who killed them will pay for this, and dearly.

(As they have a talk, Rachel's power-hungry parents are seen watching her from afar.)

Nolan: What is she doing? Talking with such a worthless brat?

Deborah: We won't let her ruin our reputation!

Nolan/Deborah: (unison) Let's have a talk with the Phenex Clan.

(They then see Rachel and Zen parting ways, and take the opportunity to approach her and drag her to the Phenex Clan Household.)

(Present day, Zen is seen in an infirmary, totally bruised as he remembers that some moments before he could go back to his current home, he got ambushed by Atlas Soldiers and Melromarc Knights, who forcefully took him to Union Academy, where several students used him as a training dummy. Recovery Girl approaches him.)

Recovery Girl: Poor boy, how many people have to suffer in such cruel world...

(Days later, Zen is seen being beaten at Combat Class again as most of the students laughed at him. Suddenly Zen managed to fight back, punching Cardin's face.)

Cardin: (stern) Why you...

(Realizing that Zen fought back, the headmasters speak through the intercom.)

Headmasters: (intercom) Kill Zen Maverick. He's no longer needed.

(Most of the students smirk as they crack their knuckles while some gasp in shock. Zen then turns to Rachel, and speaks up.)

Zen: Don't worry, Rachel. I'll come back for you.

(Zen starts running as the Union Students chase after him. He keeps running as the Union Students shove down each citizen in their way, and some of them even kicked cats or dogs. Zen runs through a forest and hides in a tree as he believes to have lost them. Suddenly he sees something in the floor.)

(He gets curious and picks it up from the floor.)

Zen: What's this?

(Suddenly he has some visions of an ancient human who somehow managed to control several monsters known as Kaijus. He then sees a human in his throne. His name was King Sargon. As he snaps back to reality, his eyes glow as he places the driver in his waist.)

(He then pulls out his card as it shows his image alongside his motif beast: Leviathan.)

Leviathan: SSSSKKKKKKKRRRRREEEEAAAAAANNNGGGGG!!!!!!!!!!!!

(He insert his card on his driver as it summons the gates behind him, then he got into his pose.)

Zen: Henshin!

M-M-MILLENNIAL!

(Then it shot out multiple logos of all Kamen Riders and then it transformed him into a Purple Kamen Rider Legend-like.)

????: Now, it's millennial time! Kamen Rider..........MILLENNIUM!

(And that's how a new Kamen Rider is born. What Zen doesn't know is that there's more about himself than meets the eye. What comes next?)

PARAMOUNT PICTURES PRESENTS.

IN ASSOCIATION WITH TOHO COMPANY AND TOEI COMPANY LTD.

HASBRO, ROOSTER TEETH, MARVEL, DC, TOKYO MOVIE SHINSHA AND JEYMISPEIXOTO STUDIOS PRESENTS.

KAMEN RIDER MILLENNIUM: THE TRUE KING OF DAIKAIJU-VERSE AND MEGAFORCE-VERSE