Melodies of the Waves (Delaney Series #4)

Robin is the most mysterious princess of their kingdom, even her own people only know a little about her. That's how she is.

She has never met someone who could match her attitude, or she thought so... because when she was sent on a mission, she met someone who had the same cold gaze as her.

Falling in love was never wrong, she just fell for an enemy.