NAME: ??? goes by X
X is, essentially an anime character who can't die. Well, she can but for some unknown reason she comes back. Reincarnated as another character in a different show. Sometimes shes the main protagonist, sometimes she's not. Sometimes shes in a slice of life, other times she's in an existential horror. Three things remain true though through all of her appearences. 1. She eventually dies in some way in the show (either tragically or horrifically), 2. No characters will remember her in a next life, nor do they get remade in any form, and 3. X will remember all of it. Due to her situation shes developed a sort of happy go lucky persona. Oddly cheerful about things- peppy to a point of unease. All knowing, omnipresent, and omniscient. X, knows just about anything thats going to happen to her due to her long life. She knows how the shows going to end from the moment shes in it- and whats going to happen to everyone in it.
gonna write a bit more later but thts the basic gist.