The world has fallen to darkness. Vampires have taken over. This story follows Leo, a novice human hunter, who gets captured by the vampiric creatures of the night. After being made a slave and subjected to nonstop phycological torment, Leo gave up on any hope of escape. That would be until one day, he saw a girl with lilac hair floating down a river of blood. Leo's human instincts drove him to jump in and rescue her, the biggest mistake of his life. As mankind's last hope, Leo and his cute but totally useless vampire companion, must go on an adventure together to save both the world of the living and the dead.