Fathomless

Fates of two unlikely people are intertwined after a young mermaid saves the life of a drowning sailor, a pirate no less, the very same kind of people she hates with every fiber of her soul.
Believing he was saved by an angel with silver hair and a voice as beautiful as one could imagine, Park Seonghwa can't get her out of his head. When he and his shipmates of the infamous pirate band known as Ateez dock their ship, Destiny in the harbour of a trading port rife with pirates of every shape and description, the would be lost at sea Seonghwa is stunned when he rescues a young lady with silver hair and a beautiful voice, who not only is lost and alone, but has no idea who she is.
And the epic journey begins.
"Will you join us?"