Kaitei Sanman Mile

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

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Returning home from an ocean trip, young Isamu meets the beautiful sea-dweller Angel on a volcanic island. Attacked by a fiery dragon, Isamu and Angel escape on the observation boat See Through, and Angel invites Isamu to see her undersea kingdom of Atlas.

(Source: AniDB)