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.
Heroes Power... 100%!
Helden-Power: 100 Prozent!
¡Poder de héroes… al 100 %!
¡Poder de héroes… al 100 %!
Pouvoir des héros…
Potere degli eroi... al 100%!
Heróis Power...
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