Quick answer — Daisuke Niinuma worked on Attack on Titan Final Season THE FINAL CHAPTERS Special 1 (Sub Character Design), Attack on Titan Final Season THE FINAL CHAPTERS Special 2 (Sub Character Design), DAYS (Chief Animation Director) and 2 more anime.
Daisuke Niinuma worked on Attack on Titan Final Season THE FINAL CHAPTERS Special 1 (Sub Character Design), Attack on Titan Final Season THE FINAL CHAPTERS Special 2 (Sub Character Design), DAYS (Chief Animation Director), Mashiroiro Symphony (Prop Design), To the Abandoned Sacred Beasts (Character Design).
