Far below the deep blue waves of the ocean lives a people thought by most humans to be nothing but myth and legend.

Merfolk.

It is with one of these beautiful creatures that we begin our tale. Park Chanyeol, younger brother of the illustrious Taeyeon the Gentle, dreams of a life beyond the endless blue of the oceans. Among his kind, it is not uncommon to be born with a supernatural ability. For Chanyeol, his power has made him an outcast, and only increased his desire to be somewhere other than stuck under the sea.

When a freak storm brings Chanyeol face to face with a human more beautiful than he could have ever dreamed, he begins to question whether he simply wants adventure, or to be where no mer has ever been permitted to go.

As for Kris, ever since that day his dreams have been haunted by the face of the person who saved his life before disappearing without a trace. Who was that boy, and why is the once serious and cold university student so drawn to a person who may not even be real in the first place?

Two vastly different worlds are about to collide...