Facing All Living Beings with the Back of All Souls

In the Demon Spirit Continent, the Demon Spirit Master is revered. All strength comes from the demon spirit. The quality of the demon spirit and the demon spirit master determines future achievements. The soul of an extraordinary warrior from another world breaks the space barrier and carries the demon spirit of an ancient ferocious beast to lodge in the body of a boy who dreams of becoming the strongest demon spiritual master. Dreams, legends, stories start with this boy. (This should be a super slow article with a running account.)