The pureblood koyagami family has 2 daughters, Rina (you) and Ayano. Ayano is half pureblood - half human bcs her ancestor was human. One day Rido Kuran comes to their house and kills their parents and many secrets won't be told to Rina and she has to find it herself! Rina fought with Rido but she got separated from them. Kaname and Ayano think that Rina is dead and Ayano finds an interesting silver hair boy!