Google Drive isn't too reliable, Files might get deleted by google themself so... If files are missing, then they are missing :)
"If I was a zombie I'll never eat your brain..." Stephanie Mabey - The Zombie Song
This song made me want to rewatch this Anime, thus I did.
I... yeah, i remembered loving this anime, now its just an eh.
Manga is pretty good mainly because the mangas ended, so after the Anime go read the Manga while listening to The Zombie Song by Stephanie Mabey.