Eight years after the end of the original Adopted Soldier, a boy by the name of Sigmund Resteti gained a dream to become the strongest. As the son of a hero, he's been compared to his father his entire life. But due to his unique circumstance, he was looked down upon by others. Since, in this new world, there were four categories of humans. The ability users, the magic users, the hybrids, and the unchanged.There were also old humans which were what the new generation calls the humans before the change. Not being part of any of the four categories, Sigmund was the last remaining old human. Follow him on his journey to prove himself the strongest.