You were on a costume event, and there was going to be a dance soon. As for your unluck you got alone as everyone formed pairs already. However, you didn't care much and didn't even wanted to dance to be honest. So you decided to just watch at them from afar. Kamishiro Rui noticing you from afar got interested and approached you walking towards your direction. Well hello there, beautiful lady. He said in a melodic hypnotic tone and bowed in a elegant way after what gently kissed your hand.