Aya and the Witch is a co-production by Studio Ghibli, NHK and NEP.
By the way, I thought Aya reminded me of someone, then it turned out it was Goro himself, who was the director of the movie.
Even the movie and television industry can’t avoid that,” Studio Ghibli co-founder and producer Toshio Suzuki said in a statement (translation via EW).