Based on Harry Potter and Owari no Seraph Please note that no prior knowledge about Owari no Seraph is required to understand this fanfiction At the end of Harry's Fourth Year, Voldemort rose. Worried about his safety, Dumbledore contacts one of his old friends to watch over him in his Fifth Year, disguised as a student. The One and Only: Krul Tepes, Queen of the Vampires. But once she's there, there are many more things to worry about, including but not limited to: 1) Krul wanting to kill Umbridge 2) The Golden Trio closing in on "Katrina"'s real identity 3) Voldemort hearing about the Vampire at Hogwarts *I own nothing **Knowledge of Owari no Seraph is not required to understand this story ***There are no OCs in this story except for Naoi Ikuto, Maebara Keichi, and Sonozaki Kanade, who play very minor roles ****AU where HP and OnS exist in the same universe but do not effect each other until now *****HP timeline is moved up so Harry is born on 2001 and enters his first year in 2012 ******OnS timeline is moved up so that Mika is born on 2000 and the Virus occurs in 2008 *******Virus does not occur, and other things about OnS have been changed a well