While some people live a dream life, away from any problems, some are just drowning in their own tears. We are born equals, but we certainly do not grow up to be equals.  That is the case for a certain 16 years old student named Koba Nacht. This seemingly normal, if not a little bit too thin and pale, young man is actually quite special. Because he doesn't live, he survives. Every moments of his life was a fight, be it a physical or mental one. And when he finally thought he could live a normal life, the universe itself seemed to just say no. But maybe luck decided to be on his side for once, that certainly coulf explain why he suddenly found a contract that could give him what he always wanted. However there is one thing that should never be forgotten.......Nothing in this world is free.