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Tat-chan - Momo-chan no Fushigina Taiken
たっちゃん・ももちゃんのふしぎなたいけん
Description
Tat‑chan and Momo‑chan, two kindergarteners, are playing in their sandbox when they are unexpectedly drawn into a game world. There, they witness Waterman battling Satan Fire, and the OVA uses this scenario to teach children about fire safety.