夜型爱人专门店

“KURANKEN HOUSE”是一间由天蓝（佐野史郎）经营的，以吸血鬼变装秀为卖点的牛郎俱乐部。帅哥们在哥特式的店内为女士们制造一夜绮梦。而这家俱乐部的万年No.2 —苏芳（松田悟志），却是真正的吸血鬼 ，每天隐藏着自己的真正身份，在取悦女性的同时，每晚以一袋袋的输血用血液充饥。而就读于名门女校却被视为问题少女的狩野莉音（小向美奈子），因为好友被卷入吸血鬼绑架高中女生的事件中，开始调查好友的去向，也因此来到了“KURANKEN HOUSE”。Rion, a naive, loudmouthed teenager, investigates a host club full of vampires when she suspects they must be related to the disappearance of a lot of people in the neighborhood, including her best friend. In the process she begins to befriend them, especially the leader Suou, with whom she develops a romantic relationship.