
Quick answer — Kai worked on Clannad: After Story (Original Story), Summer Pockets (Original Story), KAGINADO (Script) and 4 more anime.
Kai worked on Clannad: After Story (Original Story), Summer Pockets (Original Story), KAGINADO (Script), Kud Wafter (Original Story), Rewrite: Moon and Terra (Series Composition Assistance), Prima Doll (Series Composition), Rewrite (Series Composition Assistance).