The Pureblood's are powerful Vampires. The most powerful to be precise. The Crestlight family was known as the most powerful in the western world, but there was one who wanted their power for himself. Estelle Crestlight only wanted to save her daughter, taking her to Japan to meet the Kuran's so their families could stop Rido from getting their children. Estelle changed her daughters memories, locking them up and throwing the Pureblood lineage the Vampires held so dear in a cage. Now, the girl stands in front of Cross Academy as Rosalinda Kiryu. A Vampire Hunter with no memories other than the ones she shared with her adoptive family. She trained hard in the years after her family died and she was now more determined than ever to protect her brother. But...at what cost?