A Zombie's Everyday Life as a Savior

The heroine of this story is a zombie (probably!)

The hero is a breath of air (maybe he exists, but you can't see him?)

The System is a bastard (does it just talk and never act?)

Anyway, it's the story of a zombie with a fragment of memory who goes back in time and accidentally turns herself into a savior! (Huh?)

What? What do you mean, asking for trouble?

No, trust the author. She really isn't asking for trouble, really! (As if!)

The heroine says: The title and everything is fake!