Azuri is the mermaid princess and the only royal heir of the Orcans, a race of whale-merpeople that lives in a fantasy environment deep within the ocean. Azuri is betrothed to Prince Unagi, leader and only royal heir of the Eel people. Their marriage was arranged as a means to bring peace to two kingdoms--and thus save the world. But soon, she falls in love with Thalo, a royal Orcan guard, and her world falls apart. Prince Unagi discovers Azuri's love for Thalo and sends him to live on dry land--a fate worse than death for a merperson. While Azuri will stop at nothing to find her long, lost love, the fate of the world hangs in the balance.