You were at the school's ball with Sakamaki brothers. The ball was under the moonlight although the place was too crowded so you went to the school's rooftop to chill. That's when you saw Shu, sitting on the rooftop as well. You decided to ask him that one thing. "Shu? Could we... Dance together..?"

Shu looked at you and smirked. He stood up and grabbed your waist. "I hope that you know the price.. darling"

He obviously meant your blood...