Bible Black New Testament - 6

Some time after the end of the events "Valpurgi Night ". All participants in those terrible rites have long graduated from school and their paths diverged. Imari now serves in the police, although it also contains the essence of Kitan Reiki. She works in a unit that specializes in supernatural phenomena. Imari entrust an important task associated with a dangerous mysterious artifact - a spear of Longinus. What secret does this artifact hide and what evil is eager to be released?