When a merman fall in love with a vampire, when the obsession born beneath the waves imprisons his deity of the land. This coercive love drives Dylan to chain Lucian to the abyssal depths with silver links. Lucian, a human oceanographer, suffers the Embrace, forced to survive solely by drinking Dylan's blood. Hunted by the executioners of the Sea God's priesthood and the ancient Vampire Progenitor, Dylan tears his fishtail apart with his own strength to wage war on land for love. Witnessing his lover teeter on the brink of death, Lucian fully awakens his black-gold wings and slays the Progenitor. He leaps into the silent, lifeless abyss to seek a sacred relic and bring Dylan back from the verge of demise. In the end, the two transcend life and death to attain ultimate redemption, standing side by side to be crowned rulers beneath the ocean.