Tsubaki's Eve and Love

Hi! I'm Mai Shirota, I'm Mahiru's Younger sister, by a year. I also know vampires are real, and I have one as a friend, though he thinks I don't know. Anyway, I came home from dance practice one day to find a servamp in my home... that is the day my life started to change, and the day I fell in love... with the wrong person, says my brother.... His name is Tsubaki.