16-year old Pureblood Vampire Mitsuki Kobayashi is still traumatized by the events that happened 2 years ago. Her younger brother Kaito Kobayashi being murdered by Rido Kuran right in front of her eyes. After that day, the Kobayashi family went into hiding for two years. They stayed in their residence for 2 years. For these two years, Mitsuki has been having nightmares of the past events, and hallucinations of Rido appearing before her. Her parents then transfer her to Cross Academy, where her life will change completely.

Isolation. Depression. Rejection. Born with the eyes of her uncle, she was instantly rejected by her parents. With only Kaname who seems to be the only one to acknowledge her presence. However, with the other Pure Blood Princess here, her so-called "parents" hated her more and even her beloved brother seem to start leaving her as well. Join the tragic story of a young girl who was once named Kuran Sara.