Demon Soul Master Strength System. That was the answer Vlad arrived at after searching for a way to improve the battle power of his people. Currently, they had Origin Force, which could enhance every aspect of their existence, but that was a limited resource as the Plane Will would stop granting it after rising to the higher dimension. Therefore, he needed a method that could work even after that.
Soul Flags were a powerful cultivation technique from his Second Past Life where people sealed the souls of powerful beasts into unique treasures and then used them to fight. Vlad took this a step further by envisioning a way to fuse the souls with the caster. Inspiration struck him as he analyzed the Totem Strength System and saw how it nurtured the body and spirit of its users.
Vlad couldn't summon the power of a Primordial God like Odinvaldr, so he searched for something more readily available in Terra, and nothing fit those criteria more than demons.
