
Quick answer — Fumihide Sai worked on Zombie Land Saga: Yumeginga Paradise (Character Design), Shugo Chara!! Doki (Character Design), Shugo Chara! (Character Design) and 2 more anime.
Fumihide Sai worked on Zombie Land Saga: Yumeginga Paradise (Character Design), Shugo Chara!! Doki (Character Design), Shugo Chara! (Character Design), Granblue Fantasy: The Animation Season 2 (Character Design), Gokujo. (Character Design).