Ah! My Goddess

Ah! The Place Doesn't Matter as Long as the Two of Us Are Together! (2x20)

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Belldandy must spend a week without using her magical powers. Keiichi and the gang then get dumped on literally as all their friends and decide to store their things at the temple. Skuld creates a device that enlarges the storage room but when Keiichi and Belldandy use it, something goes wrong and they end up lost in a seemingly infinite space!