Gear Remnant (Kamen Rider OC X RWBY crossover)

Chaos begin

Hikaru was rushing towards the arena hall.

Hikaru: I'm late! I'm so late!

Until he saw Mercury stop him.

Mercury: Hey, kid. It nice to meet you again.

Hikaru: Um... Kinda... I have to hurry to see Pyrrha match. I can't be late!

Mercury: Really? You think you can give me some excuse?!

Mercury begin to attack him with his right leg and Hikaru quickly avoid. Hikaru step back from him and pull out his Gear Driver on his waist and then he insert his Gear-Mode into the slot.

Attack Mode! Defend Mode!

Hikaru: Henshin!

He press the button and transform.

StrikeBarrier!

He transform into Gear and begins to attack him. He swing his sword but Mercury quickly avoid it and kick him on his face. Mercury then kick him multiple times but Gear use his shield until he was knocked back by his powerful kick.

Gear fall down on the floor and saw Mercury try to kick. Gear roll over and stand up.

Gear: What do you want from me? Revenge?!

Mercury: More than that.

Gear pull out his Gear-Mode and replace it.

Ice!

And then he press the button and transform into StrikeIce form. He shoot at Mercury leg and froze it. Mercury look at his right leg and then he try to break it with his left foot but Gear froze his left leg. Mercury is now freeze and can't move. Gear transform back to normal.

Hikaru: I really hate your face. But I need to stop Pyrrha before-

Mercury: It too late already.

Hikaru: What? What did you say?

Mercury: I just say that Pyrrha will just going to kill Penny. You don't know who behind all of this. Right?

Hikaru walk toward him and punch him in on his face and collapsed on the floor. Hikaru then rush and go to the arena. When he arrives there, there is a moment of darkness, cut by the wire slicing through the electronics in Penny's torso to reveal a shocked Pyrrha, and the entire stadium watching the now unmoving swords drop to the ground. A piece of fabric flutters to the arena floor, only to be pinned by the point of a falling blade, away from the torn halves of Penny Polendina.

Pyrrha stares in abject horror, eyes wide and mouth agape. Hikaru was shocked.

Hikaru: No... I was... Wrong about Analog...

Port: (straightening in shock at the revelation alongside Oobleck, and with Ozpin standing up from his chair back at Beacon) No!

While the remains of Penny's missing arm spark with electricity from the exposed wiring inside, her big green irises, now looking like camera shutters, slowly expand so her dark, lifeless pupils take up most of her eyes with the sound of a machine shutting down.

In an Atlas laboratory, a balding white-bearded man watches the live footage on the news, his hand gripping the armrest of his chair tightly. The crowds are still terrified by the sight, and miles away in Mountain Glenn, Grimm of all kinds turn toward the Colosseum, and begin to charge.

Finally, Ruby turns a corner and emerges from the service tunnel, only to see with her own eyes that she is far too late.

Ruby: (falling to her knees) Penny... (she begins to cry, the tears fall as she sobs miserably)