(Y/N and his group are seen arriving at what appears to be an abandoned church, and they see Ex-Aid fighting OOO.)

Claire: It's that Kamen Rider we saw at the other church? Why is he fighting another Kamen Rider?

Woz: I have a feeling that the one using OOO's power is another Fake Successor.

Kiba: Shouldn't we head in?

Akagi: Don't bother. If that triple colored rider is sided with Kokabiel, he must have already known we'd be here.

????: You're right.

(They turn to see Valper along with Kamen Rider Diend, much to their surprise.)

Y/N: Is that... Diend?

Sarada: No, just a pretender, just like the fake OOO!

Diend: Tough talk for someone who took my buddy's power!

Sarada: It was never his to begin with!

(Sarada then pulls out a card, and prepares to insert it on his driver.)

Sarada: Henshin!

KAMEN RIDE: DECADE!

(Sarada transforme into Kamen Rider Decade, and prepares to attack, but Chris orders his girls to do so.)

Chris: Step aside. Girls, attack!

Chris' Peerage: (unison) Yes, Lord Chris!

Diend: (scoffs) Stupid brats.

(He then pulls out two cards, and inserts them on his driver.)

KAMEN RIDE: METAL BUILD!

KAMEN RIDE: GOLD DRIVE!

(Two riders are summoned by Diend.)

(They easily defeat Chris's Peerage, much to his anger.)

Chris: No! (pulls out his driver) How dare you harm my harem?

(Chris places the Build Driver on his waist, and then he pulls out an adapter with a fullbottle.)

(He places the fullbottle in the adapter, and inserts it on his driver.)

KILLBUS SIPDER!

(He cranks up the lever of his driver.)

ARE YOU READY?

Chris: (angry) HENSHIN!

SPIDER! SPIDER! KILLBUS SPIDER!

(Chris transforms into Kamen Rider Killbus, and easily outclasses Metal Build and Dark Ghost, but Diend isn't interested in fighting him.)

ATTACK RIDE: BLAST!

(Diend shoots some homing blasts at Killbus, harming him greatly.)

Y/N: Alright, let's do this!

ZIKU DRIVER!

ZI-O!

D-D-D-DECADE!

(He prepares to transform again.)

Y/N: Henshin!

RIDER TIME! KAMEN RIDER ZI-O! ARMOR TIME! KAMEN RIDE! WOW! DECADE! DECADE! DE~CA~DE~!!!

Zi-O: Ikuzo... TEMERA!

(Zi-O, Decade, Claire, Kiba, Kuroka, Saji, Irina, Xenovia, Artoria and Salter fight against Diend and Valper while Akagi, Enterprise, Belfast, Sona and the others help Ex-Aid against OOO. Enterprise fires some torpedos at OOO, making it stagger back.)

OOO: (stern) Who dares attack the great Kamen Rider OOO?

(OOO then charges at the girls, but Tsubaki makes a mirror, blocking his attack, allowing Sona and her peerage to attack him and make him stagger back more.)

Ex-Aid: Thanks for the help, but now let me take care of this.

(He pulls his Kaigan Ghost Gashat, and clicks it.)

KAIGAN GHOST!

(He then removes his current gashat before placing the Legend Rider one in his driver.)

GASHAT! GACHAN! LEVEL UP! INOCHI MOYASU! KAKUGO KIMERU! KAIGAN GHOST!

(Ex-Aid charges at OOO, and summons the Gan Gun Saber as he slashes the Fake Rider.)

(Meanwhile, Decade tries to slash Diend, who blocks his attack, but then Zi-O pulls out the Ghost Ridewatch, and inserts it on his Ride Heisaber.)

HEY! GHOST!

HEY! GHOST! DUAL TIME BREAK!

(Zi-O launches several parkas at Diend, making him stagger back, but as Kuroka is about to scratch him, Diend jumps back.)

Diend: You're starting to piss me off!

(Diend tries to summon another Kamen Rider, but Saji grabs him with his Sacred Gear, giving both Zi-O and Decade an opportunity to punch him, making him stagger back. Kiba slashes Valper as Diend gets up and tries to use another card while Decade uses his.)

ATTACK RIDE: BLAST!

ATTACK RIDE: BARRIER!

(Decade shoots, but Diend's barrier blocks his shots.)

Diend: Not gonna work.

Zi-O: (pulls out Kabuto Ridewatch) This will.

FINAL FORM TIME: KA-KA-KA-KABUTO!

(Zi-O then activates his Hyper Clock Up Command.)

HYPER CLOCK UP!

(He then dashes at Diend, striking him back several times.)

(As he stops striking Diend, the Hyper Clock Up time is up.)

CLOCK OVER!

(Suddenly a mirrored Kamen Rider Zi-O comes in.)

Mirror Zi-O: Beside being fakers, you're incompetent, I see.

Zi-O: Another me?

Mirror Zi-O: I am you, but you're not me!

Killbus: Ha! Then I'll take care of you.

Mirror Zi-O: Don't make me laugh, I'm stronger than you!

Killbus: Silence, you weakling! There's no way you're stronger than me!

(He summons his sacred gear and snaps his fingers, but nothing happened.)

Killbus: Huh?! How can this be?!

Mirror Zi-O: Did you really think this would work on me?

(Mirror Zi-O then punches Killbus in the face.)

Maya: Chris!

Mei: How dare you harm our lord?

(Chris' Peerage attacks Mirror Zi-O, who easily strikes them back.)

Chris: How dare you...

(Chris prepares to execute his finisher while Mirror Zi-O does the same.)

READY, GO! KILLBUS SPIDER FINISH!

FINISH TIME! TIME BREAK!

(A series of magenta-colored, mirrored "Kick" characters appear and circle Killbus, who grows his spider legs. Mirror Zi-O then jumps high as the reversed "Kick" characters merge into one and imprint on Mirror Zi-O's left foot as Mirror Zi-O performs a flying kick into Killbus, who is overpowered by him.)

Claire: This Mirror Zi-O is really strong.

Diend: If you're done lecturing me, you can-ack!

(Mirror Zi-O kicks Diend back.)

Mirror Zi-O: I'm not at your side anymore.

(Zi-O then charges at Mirror Zi-O as Diend is about to summon more Riders, but Decade grabs him and throws him to a tree.)

Decade: Think we're not focused?

(Cut to Zi-O and Mirror Zi-O, the latter smirked)

Mirror Zi-O: Heh! I knew we'd meet face to face.

Zi-O: You were waiting for me?

Mirror Zi-O: Yes, and now we fight!

(Mirror Zi-O charges at Zi-O, who blocks his attack with his Ride Heisaber. They clash as Zi-O slashes Mirror Zi-O, who dodges and summons his own Zikan Girade.)

ZIKAN GIRADE!

(He then tries to slash Zi-O, who blocks the attack, and pushes him back.)

Mirror Zi-O: Not bad... (pulls out a ridewatch) but I defeated one of those Fake Successors too.

BUILD!

(Mirror ZI-O then prepares to add some armor.)

ARMOR TIME! BEST MATCH! BUILD!

(He then dashes at the surprised Zi-O, who dodges and blocks his attack before striking him.)

Zi-O: Damnit, didn't know you could have an armor too.

Mirror Zi-O: Do you like it?

(Mirror Zi-O then slashes Zi-O, and kicks him back.)

(Back to the others, Ex-Aid is seen still fighting OOO as he prepares to finish him.)

GASHAT! KIMEWAZA! KAIGAN CRITICAL STRIKE!

(Ex-Aid performs a flying kick into OOO while he is enveloped in an orange flame. As he kicks through him, OOO screams in pain and explodes.)

PERFECT!

GAME CLEAR!

(Ex-AId then sees both OOO Ridewatch and a Gashat based on said Kamen Rider.)

(Diend is angry, and then a male voice is heard.)

????: ENOUGH!

(Everyone turns to see Kokabiel.)

Kokabiel: No one can stop the new Great War from happening. No one!

(Kokabiel then summons several light spears.)

Kokabiel: Now die!!!

(Decade then prepares to use another card.)

KAMEN RIDE: WIZARD! HI-HI, HI-HI-HI!

(Decade transforms into Wizard, and conjures a shield that blocks Kokabiel's light spears.)

Kokabiel: WHAT?! (growls at Decade) Who the hell do you think you are to stop my plans?!

Decade: I'm just a passing through Kamen Rider. Remember that!

(Kokabiel angrily throws several light spears at Decade, who summons a WizarSwordGun to deflect them along with his Ride Booker (Blade Mode) and punch the fallen angel back. Kiba tries to kick Valper, but the priest makes a barrier which blocks his attack. Diend summons two more Riders to back him up.)

KAMEN RIDE: NECROM!

KAMEN RIDE: ROGUE!

(Two more Riders are summoned as Xenovia draws her Durendal, and Ex-Aid comes in as he prepares to use another Gashat.)

BARCODE WARRIOR DECADE!

GASHAT! GACHAN! LEVEL UP! DESTROYER! SEKAI NO HAKAISHA! BARCODE WARRIOR!

Ex-Aid: I'll clear this game with no continues.

(Xenovia dodges several strikes from Necrom and Rogue while Ex-Aid kicks Diend before turning to Zi-O as he throws the OOO Ridewatch for him to catch.)

(Back to Zi-O, he is struggling against Mirror Zi-O until a ridewatch comes to him, and he picks it up.)

Zi-O: OOO Ridewatch...

(He turns to see Ex-Aid who gives him a thumbs up.)

Zi-O: (nods) Okay!

(He removes the current Ridewatch from Decade's slot as he replaces it with another one.)

FINAL FORM TIME: O-O-O-OOO!

(Zi-O then summons several kujaku feathers, and launches them at Mirror Zi-O, who barely deflects it as Zi-O charges at him and charges at him, but Mirror Zi-O dodges the attack and jumps back.)

Mirror Zi-O: Not bad, but let's try this!

FINISH TIME! BUILD! VORTEX TIME BREAK!

O-O-O-OOO! FINAL ATTACK TIME BREAK!

(They clash their kicks, causing a shockwave that shakes the area. As they kick through each other, Mirror Zi-O then removes the Build Ridewatch, and gives it to Zi-O.)

Mirror Zi-O: Not bad. I'll leave for now. But remember, it's your destiny to become Ohma Zi-O!

Zi-O: Ohma Zi-O? Wait-

(Mirror Zi-O already left.)

Zi-O: Damn it...

(Back to Ex-Aid, he is seen overpowering Diend.)

Diend: Ugh! This can't be! How am I being beaten by an heretic like you.

Ex-Aid: You have a power that doesn't belong to you, while my power was rightfully given to me. Now take this!

(He uses the Jungle OOO Gashat and inserts it in his finisher slot.)

GASHAT! KIMEWAZA! JUNGLE CRITICAL STRIKE!

(Ex-Aid jumps as three rings are formed in front of him, and he kicks through them before hitting Diend.)

Ex-Aid: SEIYA!

(Diend is hit back, and screams in pain as he is reverted back to his human form as the Diend Ridewatch is dropped, and Woz takes it.)

(Kiba manages to slash through the barriers made by Valper, and strikes him as the priest holds his shoulder, and looks at him with fear.)

Valper: P-Please! We can make a deal! I-I can give you whatever you want!

Kiba: I already have what I want!

Valper: Striker, protect me!

Striker: Fuck this shit, I'm out!

(Striker summons his aurora curtain, and leaves as Kiba slashes Valper's head off.)

Kiba: Finally!

(Kokabiel is seen fighting Decade, but gets furious due to being easily defeated.)

Kokabiel: (stern) Enough! From here on out, I will start a war! I will take your heads as a gift! Even if it's only me, I will continue from where we left off! I'm going to show Sirzechs and Michael that we, the Fallen Angels, are the ultimate beings!

Claire: So you admit you don't care about the damage it did, right?

Decade: It's people like them who make this world beyond saving...

Kokabiel: It IS already beyond saving, especially due to not only the seven satan leaders being gone, and God is dead as well.

Sona: No...

Claire: Impossible...

Irina: It's a lie...

Xenovia: Kokabiel may be many things... but a liar isn't one of them...

Decade: So it's Michael who's been answering the angels' prayers, eh?

(Everyone looked down in despair not believing what they were hearing.)

Enterprise: Once again the truth comes out... (everyone gets confused) The truth that war never changes, it's exactly the same, no matter which era it happens upon.

(Suddenly Decade stabs Kokabiel in the gut.)

Kokabiel: H-how...

Decade: If God is dead... how is this world still living? On second thought, no need to answer. It's all that matters. (grabs Kokabiel's neck) I travel through dimension and deal with threats like you so they don't toy with other people, besides destroying the worlds just in case they're beyond saving. (kicks Kokabiel) While I may hold a disease, I still fight so one day nobody would ever need to do so.

(Decade (Wizard) keeps beating the crap out of Kokabiel as Claire pats Xenovia's shoulder to comfort her.)

Claire: Xenovia! This isn't the time to mope around because God is dead! We're still here, aren't we? We managed to stay alive because we believe in ourselves! So you can either choose to stay down and not help, or fight on!

(Xenovia looks at her, and nods before facing back at Irina.)

Xenovia: Irina, I know it hurts, but we have to keep on fighting on.

(Irina then gets up as they see Decade beating the crap out of Kokabiel.)

Decade: None of us want a war. And now people like you must pay for trying to force others into it.

FINAL ATTACK RIDE: WI-WI-WI-WIZARD!

(Decade kicks Kokabiel away before summoning a circle that makes ong of his arms bigger, and it smacks Kokabiel into space as he explodes. Suddenly a golden Decade rip-off along with a White Armored being come in.)

Sona: Is that...

Claire: The White Dragon Emperor?

(Along with two figures, comes a butler with a familiar face.)

Decade: So we meet again... Aether, Scaramouche.

A. R. Aether/Kamen Rider Legend!

Legend: You had a gorgeous victory as usual, I see.

Decade: What brings you and the White Dragon Emperor here?

Legend: Azazel tasked him to bring in Kokabiel... but since he's dead... not that it matters.

Decade: Let me guess, the Hundred Jackers.

Legend: Yes, I'm still chasing after them, and I almost caught a female member who was infiltrated among the White Dragon Emperor's team.

Decade: I see...

Legend: Well, see you later.

(Legend, Scaramouche and the White Dragon Emperor leave as Decade, Zi-O and the others gather around.)

Decade: Well, another battle won.

Zi-O: Yeah, now let's go back to Kuoh Academy. We've got a lot of things to do.

(Claire clings up to Zi-O while Acheron does the same to Decade as they got ready to tidy up, but they didn't know that Chris, who was badly injured yet conscious glared at them.)

Chris: Those bastards stealing my spotlight...I'll make them pay...

(Looks like a new vengeance will be planned behind the scenes.)

(Chapter Ends)