
Quick answer — Hachidai Takayama worked on Martian Successor Nadesico (Assistant Art Director), Boku no Hero Academia: Sukue! Kyuujo Kunren! (Art Board), Boku no Hero Academia: Training of the Dead (Art Board) and 3 more anime.
Hachidai Takayama worked on Martian Successor Nadesico (Assistant Art Director), Boku no Hero Academia: Sukue! Kyuujo Kunren! (Art Board), Boku no Hero Academia: Training of the Dead (Art Board), Mysterious Girlfriend X (Art Board), Love Hina (Art Director), MegaMan NT Warrior (Art Director).