
Quick answer — Kiyohiko Azuma worked on Azumanga Daioh (Original Creator), Azumanga Daioh: The Very Short Movie (Original Creator), Azumanga Web Daioh (Original Creator).
Kiyohiko Azuma worked on Azumanga Daioh (Original Creator), Azumanga Daioh: The Very Short Movie (Original Creator), Azumanga Web Daioh (Original Creator).