Synopsis：In the mermaid kingdom, King Caelon disguises himself as a destitute wanderer to secretly hunt down a traitor, but unexpectedly falls for Mia, a kind-hearted mermaid working nearby. When Mia’s fiancé cheats on her with her stepsister and cruelly humiliates her in public, Caelon can no longer hold back and confesses his true feelings. After his real identity is revealed, Mia rises from the very bottom and transforms into the most beloved and respected queen of the seas.