Takara Tsukino which means treasure moon field, is 16 years old and all her life has been kept indoors and away from her siblings. Why? She's a vampire. She has only ever met the maids who bring her food and clothing. According to the maids she has three siblings. Her older sister Kiriko, her older brother Reiji, and her baby sister Kame. She has never seen the sun set or heard birds sing. She doesn't even know what snow is. But all of this changes when she gets news from the maids that she is going to be able to go to school, Cross Academy. Many boys catch her eye and Takara, finding out she's a flirt, decides to play around a bit. Nothing but harmful teasing. But that's only what she thinks. Meanwhile Yuuki is trying to figure out why Kaname and Zero aren't paying full attention to her. What exactly is she going to do about it?