A bloody secret

You will see that my English is not really good,I tried my best though. I picked the school name from the Internet,there is no connection between the story and the school. The story is about a girl named Alexis who lost her parents and moved in another town studying at a girls boarding school. She falls in love with a boy named Javier who is going to the boys boarding school near her. She founds out later that Javier and her new roommate,Katherina,are brothers and she finds their secret,they're 145 years old and they're vampires. Everything changes after that,Alexis's love for Javier is too big ,but she's trying to kill Katherina in her parents name,this is how she makes her worst enemy. She finds her teachers are werewolfs and with some help from a witch compelled some of her classmates so they can hunt the vampires. Alexis never thought these things would ever happen.