Old Habits Die Hard..

In a world plagued by shape-shifting monsters, a mysterious group of people known as the "Organisation" create half-human half-monsters to battle them. The Organisation have begun creating male Claymores, again. A lonely human boy offers himself to the experiment... That boy later becomes Air Slashing Sora, number 12. Alongside his only friend, wind-cutting Flora, he tries to survive in a chaotic world of monsters and fear. (VERY slight boyxboy in later chapters)