Sango Shou Densetsu: Aoi Umi no Elfie

In a world transformed by rising seas, where only remnants of land remain, Elfie resides with her grandfather on a secluded city-island. Life takes a dramatic turn when she uncovers her extraordinary ability to breathe underwater after an unexpected incident beneath the waves. As the mystery of her true heritage unfolds, Elfie learns that she is part of a legendary race of sea-dwellers, known for their connection to the ocean's depths.

Amidst this revelation, tensions rise as local leaders exploit the fears of the island's inhabitants, inciting conflict with the hidden sea-people to divert attention from dwindling resources and environmental decay. Caught in the crossfire, Elfie must navigate a precarious landscape of fear, prejudice, and discovery, as she grapples with her identity and the implications it holds for both her world and the submerged civilizations waiting to be acknowledged.