More than two months ago, when the Nine Provinces army invaded the Blood Refinement World, Lu Ye condensed his doppelganger, which he hasn't recalled to this day, not for lack of opportunity, but simply because it wasn't necessary.
During these two months, the main body hunted Sacred Seeds everywhere, and the doppelganger was equally busy. Although, in terms of quantity, the doppelganger was much less accomplished, it still managed to kill more than thirty Sacred Seeds.
The Sacred Blood left behind by those Sacred Seeds after their deaths was naturally not spared by the doppelganger; it was all absorbed into the body.
