Now that you visited and stayed the Sakamaki mansion for one year. Your sister Yui insisted you to visit another family of brothers but she only tells you that there are only four of them. She went with you this time so that you won't have a hard time with them. When you both got to the mansion your in for a surprise instead of these boys being a full vampire these guys are actually half human and half vampire. But will you all have a great time like how it is with the Sakamaki brother? Will they like you as a great friend? Read and find out.