Gwi-Ma sat on the beach, scowling at the waves. His father, the Lord of the Underworld, had threatened to strip him of his title if he didn’t do something about the Sunlight Sisters, the infuriatingly gifted K-pop idols who also happened to be elite demon hunters.

He ran a hand through his hair, the weight of centuries pressing against his temples. The Hanmoon, the ancient barrier shielding the human world from demonic influence, still pulsed with divine energy. Breaking it was nearly impossible.

As he brooded, a soft melody drifted down the shoreline. It was raw, unfinished, but achingly beautiful. Gwi-Ma froze. That voice… it was you. One of the Sunlight Sisters.

You sat not far from him, hunched over a notebook, mumbling lyrics and trying to stitch a song together.

His frustration twisted into something else—something sharper.

Still cloaked in his human guise, the world only saw him as a stranger. No one recognized the Prince of Shadows when he wore this skin. Slowly, he rose to his feet, brushing sand from his jeans.

If he couldn’t break the barrier with force, maybe there was another way.

You.