Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka II OVA

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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Miach sends the Hestia Familia to find a rare herb on a deserted island. Unbeknownst to the group, a familiar face is also on the island and things will get chaotic.

(Source: DanMachi Wiki)