[Yandere!Underverse x F!Reader] [Being rewritten, slow updates] What does the fate of the Multiverse have to do with you? In your past life, you experienced nothing but irony and a cold black drop, so why is it then when you're taken away everything suddenly revolves around you? You never wanted this, after being kidnapped by a glitched out monster, you expected a tranquil life until you died and he tossed you out. But now? Now you've got to learn how to fight, and not for others or the Multiverse. You've got to fight for yourself. Friends that you thought were safe are no longer, and you, the predator, has easily become prey. And you don't want that life anymore.

The monsters are real. They roam this land. They terrorize the citizens. No one knows where they came from or how to stop them. That's what (Y/n) is for. She's immune to all the kinds of magic and possessive spells the monsters possess, and she wants to use that power to find a way to drive them out and save Mobius because the people who would have done that are gone. But she knows where they are. Sonic the Hedgehog. Shadow the Hedgehog. Silver the Hedgehog. All of them disappeared when the monsters arrived. Who was going to save them? Without them, the world suffered and surrendered to fear quickly. But (Y/n) has located the missing heroes and plans to pay them a visit. Boy, is she in for a wild ride.