One day in the six-faced world, a newborn child, completely conscious of his surroundings, is taken in by a certain party of adventurers… the Fangs of the Black Wolf. But not two years later, the party splits, and our main character, Leon, is greeted with the pleasant surprise of a younger brother, in the form of Rudeus Greyrat. As Leon discovers more of the world and increases his strength to stave off any danger he could encounter, he comes to realize that in this world, and in his life, there is one thing he holds dear above all… family. Arcs are released in batches. Relationships (Spoilers): OC (Leon) x Sylphiette, Roxy, Eris, Ariel Rudeus x Sara, Nanahoshi, Linia
Good novel but I disagree with the fact this isn't a fan fiction, much of the lineage here is only from Vikings and in reality all of Ragnar's sons that are notable (aside from a passing mention) come from his 2nd and third wife (Ragnar met lagertha when he went to avenge his grandfather and she was key to his victory)