This was supposed to be a whole long-running story, but I just did not feel like it. I at least wrote the story summary because I felt y'all deserved it after I promised it.

TW: Void (my OC) (that's dude is so messed up but he's so fun to write.)

You're Just a Shadow Summary One-Shot

A girl named U9-b escapes from the lab she was grown in. She is a quiet girl, but she's very resourceful. She has echidna quills, bunny ears, bat wings, a fox tail, and the standard Mobian body.

A burning speck crashes into the ocean. He is none other than Shadow the Hedgehog. He is dying. He has saved the world, now he will cross the divide and reunite with his sister, Maria.

But he lives? He is the Ultimate LifeForm after all, built to survive forever. Something is wrong with the biological programming, however, and Shadow's left arm and leg remain burned and ragged beyond repair while the rest of him heals.

Shadow knows a chaos emerald could probably cure his arm and leg, so he pinpoints his chaos sense on the nearest chaos signature.

He eventually stumbles into a city and through several alleyways until he reaches the place.

In an extremely well-hidden space between buildings, U9-b holds the cyan emerald.

"I need that," Shadow growls.

U9-b looks at him. She ponders. Then she smiles and holds it out for him.

Shadow takes it and then tosses it into the air, planning to catch it and chaos control. Instead, the chaos emerald hovers in the air. Brow furrowed, Shadow tries to grab it.

It zooms away, hiding behind U9-b.

"What in the-" Shadow mutters.

Suddenly U9-b jerks forward, falling to the ground face-down, suddenly unconscious. Her quills fall to either side of her neck, exposing the cyan emerald embedded into the back of her neck.

A few days pass before she wakes. When she does, she gladly heals Shadow for him, using the emerald whose force she now shares.

U9-b doesn't talk much. She's said little to Shadow; just her name and nothing else. But she smiles a lot. She seems happy, even though Shadow won't let her leave (she is too important. She has a chaos emerald somehow merged with her.)

Life isn't great, but it isn't bad either. It's content, and it's good.

Until Void comes back. Shadow thought he was gone. He should've none not to hope…

Void is a white version of Shadow. Blank. His fur is white, but his eyes are black pits of darkness. His chest fur is black as well, but he has no quill highlights like Shadow does.

"Brother! It's been so long!" Void says dramatically.

"Void," Shadow hisses. "You were supposed to be dead."

"Oh, I let old Gerald believe that because it's so much easier to do things when no one is trying to stop you," Void says. "I've been hiding for such a long time, it seems. Why, you have a girlfriend now!"

"She's not my girlfriend," Shadow snaps.

"That's what they all say before they're de-ead!" Void sing-songs. "But really, brother, I'm glad for you! Finally, someone who manages to see past all your many many flaws and into your heart!"

"Uh," Shadow says.

"Of course, I don't know who would even care even if they did see your heart," Void adds. "When I saw it that time in the lab, it was gross."

"You were the one who ripped that scientist's heart out!" Shadow accuses.

"It was merely a scientific endeavor! I'd seen your heart, and the question had been poking at my mind ever since then: 'What does a human heart look like?'" Void says. "Just like a scientist, I had to find out. So I did! It's just as gross, sadly."

"You," U9-b says, surprising everyone there. "Kill?"

"Oh, I've killed many people," Void says. "People who've seen me, people in my way, stress relief, getting out of that horrible space station."

U9-b shakes her head sadly.

"Wrong," she says. "Stop."

Void stares.

"Uh, why would that convince me?" Void asks.

U9-b just frowns.

"Aaaaaaanyway," Void says. "You're coming with me."

Void grabs U9-b and Shadow's arms and chaos controls away.

U9-b and Shadow stay for several days. U9-b doesn't care to leave; she has her reasons. Shadow is being forced to do what Void says from chaos manipulation.

Void drags Shadow with him to a vault, where he steals a chaos emerald. Sonic and friends arrive on the scene. A battle begins.

Sonic and friends manage to save Shadow by knocking him out. They figure they should stop Void, but to do that they need to know the location of his base. No one knows, since Void always chaos controls there.

Sonic is patrolling around the world, searching for any sign of Void's base. He runs into a mysterious girl in a misty wood.

She hands him a map and disappears into the mist.

The map has a red circle on it. Sonic brings it back to the others. They decide that's as good as any guess, so they go to check it out.

Surprisingly, the red circle marks exactly where Void's base is.

Another big fight starts. There's lots of fighting. It seems it will never end.

But then U9-b confronts Void.

"Void," she says. "Don't. It isn't worth it."

And she reaches out and touches him on the forehead. His eyes widen, and he staggers.

"Come with me," she says. "We will go."

"...OK," he says quietly, a surprise coming from him.

U9-b smiles. She puts her hand to her neck and pulls the cyan chaos emerald free. Then she flings it high into the air. The light flashes bright, and when it dissipates, U9-b and Void are gone and a chaos emerald clatters to the floor.

Fight over, everyone goes back to their ordinary lives.

But Shadow still remembers U9-b. Her eyes. How she always seemed to know more than she should've. How she only ever talked to him and Void.

He misses her, honestly. But he doesn't see her for years. Not until a lab clones him (without his permission, he might add.)

She finds him. She knows a destiny will be carried out. She knows this is just the prequel to something larger.

If, after reading this, anyone really really wants it to be written, just send my a PM and we can co-write it. I don't have the motivation to write it myself.