In the underwater world, carp spirit Lila Rivers saved injured Ethan Gray, the crown prince of the Heavens. Ethan, bored in the Heavens, had faked his injury to explore the Mortal Realm. He won Lila's heart but she discovered his deception and cut all ties. Realizing his love for Lila, Ethan abandoned his heavenly status to be with her. In the Mortal Realm, he endured hardships to prove his love. But could Lila accept him again?