Quick answer — Hiroaki Karasu worked on Summer Time Rendering (Sub Character Design), Magical Girl Lyrical Nanoha: The Movie 2nd A's (Animation Director), Magical Girl Lyrical Nanoha: The Movie 1st (Animation Director) and 8 more anime.
Hiroaki Karasu worked on Summer Time Rendering (Sub Character Design), Magical Girl Lyrical Nanoha: The Movie 2nd A's (Animation Director), Magical Girl Lyrical Nanoha: The Movie 1st (Animation Director), Maoyu: Archenemy & Hero (Character Design), Hayate the Combat Butler: Heaven is a Place on Earth (Key Animation), Dog Days Season 2 (Chief Animation Director), Tokyo Ghoul:re 2 (Sub Character Design), kiss×sis (TV) (Key Animation) and 3 more.
