Quick answer — Mitz Vah worked on That Time I Got Reincarnated as a Slime Season 2 (Original Character Design), That Time I Got Reincarnated as a Slime Season 2 Part 2 (Original Character Design), That Time I Got Reincarnated as a Slime Season 4 (Original Character Design) and 7 more anime.
Mitz Vah worked on That Time I Got Reincarnated as a Slime Season 2 (Original Character Design), That Time I Got Reincarnated as a Slime Season 2 Part 2 (Original Character Design), That Time I Got Reincarnated as a Slime Season 4 (Original Character Design), That Time I Got Reincarnated as a Slime (Original Character Design), That Time I Got Reincarnated as a Slime Season 3 (Original Character Design), That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond (Original Character Design), That Time I Got Reincarnated as a Slime: Visions of Coleus (Original Character Design), That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea (Original Character Design) and 2 more.