Arthorius Ynha-El Hyuga, or as his friends and family call him, Arthur, is a 22 year old who comes into possession of a Generation I A.I. While this was not necessarily the one he wanted, he didn't much care. However, he later finds out a dark secret about said A.I., which changes his entire view of the New World. While working as a Mercenary for the Black Letter Programme, a Freelancer Company which specializes in training Operatives for hire, Arthur gets a peculiar job to save a child belonging to the family that created the Mother of A.I. This job however, turns out to be something grimmer than just a search and rescue... sending him on a mission to try and prevent another World War, and possibly, even uncover a truth far more grim than war.