Gunma-chan, Uncle Akio, Aoma, and Meemi visit Gunma's kofun site and wander into an alternate world beneath Gunma in the Season 2 finale.
What happens when we get all three?
Was passiert denn,
wenn wir alle drei haben?
Cosa succederà quando li avremo tutti e tre?
Quando tivermos os três,
o que acontece?
Что будет, когда соберём всё?