Well, I suppose Higurashi no Naku Koro ni back when I first began watching anime, and later on Baccano! and Spice & Wolf.
As far as I know, Fate/Zero isn't written by Kinoko Nasu, but by Gen Urobuchi. Another reason it, and the anime derived from it, is of superior quality.GabeZhul said:...
The only reason Fate/Zero does any better is because it is based on the prequel novels written by the same author, so it could be adapted straight and true to the original without having to mix the elements of different routes (which more often than not leads to horrible results).
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