(A CIA assassin known as Skylar Inferno is seen watching Zane's fight against Kiryu.)

Zane: Time for another combo!

(Then Zane places three core medals in his driver and scans them.)

Zane: Henshin!

OOO Driver: Lion! Tora! Cheetah! (Roar) La-ta La-ta, La-tora~~tar!

(Then Zane becomes Kamen Rider OOO, and roars while unleashing a powerful wave which brings Kiryu down.)

Kiryu: Damn it... this isn't supposed to be this way...

(Then Oboro comes in.)

Oboro: I'll handle him.

Kiryu: (grunts) Do as you wish...

(Then OOO and Oboro charge at each other, and OOO pins her down before slashing her six times.)

Oboro: Ugh, how can you be that strong?

(OOO doesn't respond. He simply scans the medals again.)

OOO Driver: Scanning Charge!

(Three yellow rings are projected in front of OOO before he through them with the Cheetah Medal's speed, and then he delivers a cross slash on Oboro with the Toraclaws infused with the Lion Medal's energy projection.)

OOO: SEIYA!

(OOO kills Oboro, and then he pants.)

OOO: I did it...

(Then Kurenai comes to OOO.)

Kurenai: You're incredible, Zane. Now leave the rest to us.

(Kurenai takes OOO back to Gosha Academy while the other Taimanins come in to finish Kiryu. Skylar simply watches the scene and gets interested in something.)

Skylar: So this is the Rider System... interesting.

(Some days later, Skylar has silently copied Zane's rider system and created a driver of his own, named as Poseidon Driver. But Ankh finds out and goes back to Gosha Academy.)

(At Gosha Academy, Zane is seen having already recovered from his injures as Ayame approaches him.)

Ayame: Oh, Zane. So you have recovered, yes?

Zane: Yes.

(Then Ankh comes in.)

Ankh: Zane, we need to talk.

Zane: (to Ayame) Uh... wait a minute...

(Zane goes to a room with Ankh.)

Zane: What do you want to talk about?

Ankh: Someone copied your rider system and created the Poseidon Driver.

Zane: What the... the nerve of those people. I'll face him or her personally.

(Timeskip)

(It's already night, and then Zane sees Skylar.)

Zane: You!

Skylar: Hmm... so you're Zane...

Zane: Who gave you the permission to copy my rider system?

Skylar: You found out...

Zane: Yeah, and now I must defeat you.

Skylar: Bring it.

(Then both place the core medals in their respective drivers and scan them.)

Zane/Skylar: Henshin!

OOO Driver: Sai! Gorilla! Zou! (Dull thud) Sagohzo... (Drum beat) Sagohzo!

Poseidon: Kuwagata! Kamakiri! Batta!

(Then they transform in their respective forms as Skylar becomes Mirai-OOO.)

Mirai-OOO: Kamen Rider Mirai-OOO Uva arrived!

(Then OOO roars as Mirai-OOO charges at him, and then OOO starts creating shockwaves by banging his chest "armor" with the Gorilla Arms. As he is done, Mirai-OOO is brought down, and then OOO prepares to defeat him.)

OOO Driver: Scanning Charge!

(OOO manipulates gravity to lift him into the air and weights himself down to hit the ground with a powerful stomp, trapping Mirai-OOO in the ground that forms around it while the reformed ground moves toward OOO where he delivers a powerful double handed punch and headbutt at the same time.)

OOO: SEIYA!

(OOO defeats Mirai-OOO, who detransforms, but due to the pressure of the Sagohzo Combo, Zane is forced to detransform as well as he pants.)

Zane: Why... do you... fight?

Skylar: The reason why I fight is simple... to protect all life!

Zane: So... you're not... with Black?

Skylar: Of course not... I want him... dead... for what... he did to... my parents.

Zane: How about... we team up...

Skylar: Deal...

(To be continued)