Question: Were Kou Yaginuma and Leonardo Vitorino of the same nationality?
Sentence (from "Kou Yaginuma"): " The Fireworks of 2015" would serve as a prequel to his later and most notable work," Twin Spica", which began serialization in September 2001 in" Comic Flapper Twin Spica" was adapted in 2003 into an anime television series, animated by Group TAC and directed by Tomomi Mochizuki, which premièred in Japan on NHK.
Relevant evidence: Yes