
Quick answer — Tarou Tatsunoko worked on Problem Children Are Coming From Another World, Aren't They? (Original Creator), Problem Children Are Coming From Another World, Aren't They? OVA (Original Creator).
Tarou Tatsunoko worked on Problem Children Are Coming From Another World, Aren't They? (Original Creator), Problem Children Are Coming From Another World, Aren't They? OVA (Original Creator).