Across the Stars (Shoto Todoroki x Reader)

The all too familiar stench of rotting flesh faded away as she was consumed by her own darkness. She woke up in a peaceful atmosphere. No one knew of her origin. She thought she did, now she wasn't so sure.

"You can always ask me for help, you know."
"I don't trust you."
"If you didn't, you wouldn't be here."

She can do anything to find her origin. They will do anything to stop her. Her soulmate will do anything to keep her safe and vice versa.
But...
Someone always dies in a cycle as such, what's different about her story?

Starts with a zombie au and then changes into a soulmate au.

Inspired by all of us are dead and happiness and a bunch of other things.
(Rated mature because of descriptions of gore)
(So I decided to continue this story because why not)