FGO: Transmigrating into the Apocalypse

What is a Heroic Spirit? As the name suggests, it's the soul of an ancient hero.

And what is a zombie? Again, just as the name suggests, it's a corpse that's lost its mind.

So what do you get when you put them together? Let's find out... Hey, hey, honey, don't pull my ear! I'm sorry, I'll go back and handle the paperwork right now! Honey, my beloved Dark Jeanne! I'm sorry!!!