imagine OMORI. now, imagine OMORI but right after the good ending, the zombie apocalypse begins... (sunflower fic;; massive spoilers, trigger warning)

Spoilers for OMORI. AU where Mari was transported to a fantasy world after pizza. She comes back to Faraway four years later as an overpowered anime protagonist and learns how her friends have changed over the years as she'll try to stop someone from saying good night.