
Quick answer — Keita Amemiya worked on Garo: The Animation (Original Creator), GARO -VANISHING LINE- (Original Story), Iria: Zeiram The Animation (Original Creator) and 4 more anime.
Keita Amemiya worked on Garo: The Animation (Original Creator), GARO -VANISHING LINE- (Original Story), Iria: Zeiram The Animation (Original Creator), Tweeny Witches (Original Creator), SWORDGAI The Animation (Original Character Design), SWORDGAI The Animation Part II (Original Character Design), Garo: Crimson Moon (Original Creator).