Unfortunately, I can't translate it, but if I could take a wild guess, it may seem the author went out of his way to explain to possible Anime-only Viewers about Ep00.
Maybe, if someone comes around and translates it, may confirm or disclaim my guess.
EDIT: Using Google Translate...yep, the author is explaining stuff already commented here, about Ep00's objective and this season adapting v09&10, nothing new
