Quick answer — Atsushi Ookubo worked on Fire Force Season 3 Part 2 (Original Creator), Fire Force Season 2 (Original Creator), Fire Force Season 3 (Original Creator) and 5 more anime.
Atsushi Ookubo worked on Fire Force Season 3 Part 2 (Original Creator), Fire Force Season 2 (Original Creator), Fire Force Season 3 (Original Creator), Soul Eater (Original Creator), Fire Force (Original Creator), Soul Eater Late Show (Original Creator), Soul Eater Not! (Original Creator), KamiErabi GOD.app (Character Design).
