Mermaid Melody: A Glimmer in the Deep Sea

[Follows the original story. Xingli has no pairing! Any pairings are those from the original! Updates are irregular because I only read the original from time to time.]

When Xingli was three, Lucia, the mermaid princess of the North Pacific, found her on a coral reef. From then on, the two became inseparable sisters. When Lucia turned fourteen, she went ashore to retrieve the pink pearl she had lost while saving Haitang at age seven, and Xingli resolutely went with her. On land, they must not only face the threat of sea demons, but also hide their identities as mermaids. Xingli strives to adapt to the human world and fights alongside Lucia to protect peace between the sea and the land. But the wheels of fate are turning, and tragedy is slowly approaching. What will become of Xingli in the end?