This time, Xu Jin finally figured out the origins of the Sword Essence.
The core of the Sword Essence seems to be the core of the Divine Soul Origin.
During the process of refining the Yin Yang Star Marrow, the Divine Soul Origin was slowly strengthened, and a whole new essence condensed within the Dao Embryo and then quickly expanded.
In just two hours, the number of Sword Essences behind Xu Jin's Dao Embryo increased from twelve to thirteen.
The thirteen Sword Essences shimmered brightly and appeared incredibly formidable.
Yet, the slow strengthening of Xu Jin's Divine Soul Origin did not stop.
It continued.
During two continuous hours of refinement, the previously damaged Divine Soul Origin of Xu Jin not only fully recovered but kept growing.
Until a quarter-hour before Xu Jin had completely refined this piece of Yin Yang Star Marrow, an odd feeling suddenly struck his mind.
