
Quick answer — Masahiro Mukai worked on My Hero Academia Season 6 (Director), My Hero Academia Season 3 (Episode Director), My Hero Academia Season 4 (Director) and 4 more anime.
Masahiro Mukai worked on My Hero Academia Season 6 (Director), My Hero Academia Season 3 (Episode Director), My Hero Academia Season 4 (Director), My Hero Academia Season 5 (Director), My Hero Academia: Make It! Do-or-Die Survival Training (Director), My Hero Academia Season 5 OVA (Director), Trickster (Director).