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.
"Legendary Treasures."
„Die legendären Schätze“.
"Tesoros legendarios".
"Tesoros legendarios".
Les trésors légendaires.
I tesori leggendari.
"Tesouros lendários".