(Some hours later, Y/N and the group are seen close to the church as they see Aster going to the entrance to the church.)

Y/N: Uh-Oh, he's leading them to a trap.

Claire: So they already know we're here. (shakes head) So much for strategies...

(They go to help Kuroka and her group as Freed comes in to aid Aster.)

Y/N: You...

Claire: So he's a stray exorcist.

Freed: That's right, and I'm here to stop you from helping that devil loving whore!

Issei: Hey, don't call her that!

Freed: You don't get to boss me around, devil!

Claire: An arrogant one, I see. (to Melusine) You and Kiba deal with him. Y/N, Aster is all yours. The rest of you, follow me. We're going to save Asia.

Jalter/Baobhan: (nod) Hai!

(As they go inside the church, both Y/N and Aster prepare to transform.)

ZIKU-DRIVER!

ZI-O!

Y/N: Henshin!

RIDER TIME! KAMEN RIDER ZI-O!

Aster: Henshin!

KAMEN RIDE: DECADE!

(As Zi-O and Fake Decade charge at each other, Kiba has a clash with Freed, and Melusine kicks the stray exorcist back. In retaliation, Freed tries to shoot her, but she deflects the bullets with her blade, allowing Kiba to clash with him. Meanwhile Zi-O is seen having a clash with Fake Decade until Darren comes in his Kamen Rider Ghost form to back the latter up.)

Ghost: My Ghost Ridewatch... GIVE IT BACK!

(Ghost is about to attack Zi-O, but then a voice is heard.)

ATTACK RIDE: AUTO VAJIN!

(Then Auto Vajin comes in and blocks Ghost's attack as True Decade comes in his Faiz Form.)

Fake Decade: YOU?

True Decade: ASTER SHOU! (pulls out a card) IT'S TIME FOR YOU TO DIE!

FORM RIDE: FAIZ AXEL!

(True Decade changes to Faiz Axel as Fake Decade pulls out a card, and inserts it on his driver.)

KAMEN RIDE: RYUKI!

(Fake Decade becomes Ryuki, and True Decade smirks.)

True Decade: Wrong move, pal.

START UP!

(True Decade (Faiz Axel) starts punching and kicking Fake Decade (Ryuki) several times for 10 seconds.)

3, 2, 1. TIME OUT!

(True Decade is then reverted to his normal form as he prepares to execute his finisher.)

True Decade: This is the end for you!

FINAL ATTACK RIDE: D-D-D-DECADE!

(Several holographic cards appear in front of both Decades as the real one jumps off and descends to a Rider Kick that hits Fake Decade, who screams as he explodes. While Fake Decade is destroyed, the Neo Decadriver is somehow intact as True Decade approaches it and picks it up.)

True Decade: This power was never yours to begin with, Aster Shou!

(He then turns to see Zi-O pulling the Ghost Ridewatch.)

Zi-O: You want the Ridewatch?

GHOST!

Zi-O: I'll give it to you!

(Decade gets confused as Zi-O places the Ghost Ridewatch in the other slot of his driver and prepares to change forms.)

ARMOR TIME! KAIGAN! GHOST!

(As the Ghost Armor attaches into Zi-O, Woz comes out of nowhere and prepares to rejoice.)

Woz: IWAE! The one to inherit all Rider powers, the time king who will rule over the past and the future. And his name is Kamen Rider Zi-O: Ghost Armor!

(Ghost is about to charge at True Decade, but Zi-O summons some parka to block his way.)

Zi-O: Your fight is with me, Fake Ghost!

Ghost: Fine then!

(Meanwhile Issei, Claire and their group go inside the church and see Asia tied on a cross.)

Issei: Asia!

Asia: (wakes up) Issei!

????: Looks like you're finally here!

(Raynare and her group arrive.)

Raynare: You will not stop the ritual!

Jalter: Wanna bet?

(The fallen angel summon light spears, and throw them at the group, but Jeanne easily deflects them all as Claire blasts them, and then Issei frees Asia.)

Asia: Y-You came for me...?

Issei: Of course.

(Asia smiles in tears, and then Dohnaseek is about to attack them, but Kuroka quickly blocks his path and scratches his face.)

Kuroka: Ew, fallen angel blood in my claws...

Dohnaseek: Argh, you'll pay for this, cat bitch!

(Suddenly Koneko kicks his balls from behind as he screams in pain.)

Koneko: Nobody insults my sister, damn it!

(Suddenly a voice is heard.)

MIGHTY ACTION X!

(Then a Russian individual comes in.)

????: Take the girl to safety. The crows are mine!

(He prepares to transform.)

????: Dai Henshin!

GASHAT! GACHAN! LEVEL UP! MIGHTY JUMP! MIGHTY KICK! MIGHTY! MIGHTY ACTION X!

(The individual becomes Kamen Rider Ex-Aid. Claire then uses her spell of destruction to distract the fallen angels long enough for them to escape with Asia, leaving Ex-Aid to deal with them.)

(Back to Kiba and Melusine, they dodge Freed's shots, and also his light sword as they know they're vulnerable to it. Kiba then manifests a black sword that erases the light sword's powers. Before Freed could react, Melusine beheads him.)

Melusine: Always go for the head.

(They then see Zi-O dodging Ghost's attacks.)

Ghost: Stop moving, you bastard!

Zi-O: Give me a reason to do so!

Ghost: I am your superior!

(Ghost then prepares to execute his finisher.)

DAI KAIGAN! ORE OMEGA DRIVE!

(Zi-O decides to counter.)

FINISH TIME! GHOST! OMEGA TIME BREAK!

(Zi-O and Ghost kick through each other, and then they land. Ghost then feels some sparks in his body.)

Ghost: No... it's impossible!

Zi-O: This is what happens when you go to fight without any proper training.

(Ghost explodes as Zi-O reverts back to normal and sees Claire and her group succeeding in rescuing Asia.)

Y/N: You managed to save her, I see.

Claire: Yeah, another Kamen Rider came to the fray. 

Y/N: Another Kamen Rider? Like... a true one?

Kuroka: Probably. 

(Meanwhile Ex-Aid is seen easily performing some hit combo at the four fallen angels before punching them back to the ground.)

Raynare: Ghh! This can't be! This can't be!

Ex-Aid: I was planning to change your fate, but it turns out you can't be saved at all.

GASHAT! KIMEWAZA! MIGHTY CRITICAL STRIKE!

(Ex-Aid performs a series of kicks at the four fallen angels as sparks surround their bodies.)

PERFECT!

(The four then explode.)

GAME CLEAR!

(As Ex-Aid is about to walk away, he sees two Legend Rider Gashats.)

(He picks them up and leaves the church as he sees Y/N and the group with Asia.)

Ex-Aid: Well, my mission is done for now.

(As Ex-Aid leaves, so does Decade. As Y/N and the others are about to leave, they hear a female voice.)

????: Claire Phenex, would you explain what happened here?

(They turn to see Rias and Akeno.)

Y/N: Shoot.

(To be continued.)