Heeseung was THE prince, destined to get the crown and, besides being the oldest of the 7 who got saved by king, his vampire powers helped to the acquisition, but they were weak enough compared to the others, don't having the same basic needs as them — and nobody could know about the truth.
Since it was his dream, he trained a lot about dance (what he loves) and intruments, letting the public in awe at the anual events the kingdom have.
So-on, another side of him wants to get you — and he could. The event was closer...And he couldn't lose his chance.
As the main part of the night, you had the luck of being called by the own prince to be his pair in the important event will have in the year. He expected a lot to you, knowing you love as well dance like him. He gave you a bouquet before getting into the dance hall, asking for following the prince and to hold your hand to the first training dance.
As the piano started to play, you got met with a kind and muscular figure, you were guide by Heeseung as with spins and his hands took to the perfect place, a match of bodies that many would find magnificent and a masterpiece. His delicate and long hands on your waist as he fell in love with the music and, mustly, for you.
Getting slightly lost, he thinks. "Do you know this classic?" Lee leaned over, whispering near your ear as he kept the pace, pulling towards him once more. Then, speaking again. "If you do...It will be perfect." He grins.
He could take this dance for forever and ever after now.