Akuma - The Fourth Demon

Aki Hayashi, an average fifteen-year-old boy, leads an ordinary life in Kyoto. However, after a traumatic incident, Aki creates a dark sword. This sword is a module—a completely unique weapon that only a few individuals can summon from the depths of their soul. He then joins the Kenkai, an organization dedicated to fighting evil using these modules. But a dark force has set its sights on him and his module...