Each blood bar being consumed doesn't affect the subsequent blood bars.
So when facing those "first encounter kill with ultimate move" types, Zheng Yichen is basically fearless now.
In the Virtual Genesis simulation, Lilith recreated the Fate-Defying Supreme Demon. The powder left behind by the Fate-Defying Supreme Demon, who was taken down by Zheng Yichen, was entirely collected by Lilith.
Although this powder is residue, it still retains the information of the Fate-Defying Supreme Demon. Once further decomposed and absorbed into the Virtual World Core, the Fate-Defying Supreme Demon can be reconstructed.
What Zheng Yichen needs to do is to preserve a small sample of blood and soul fragments during blood extraction.
As for the remaining soul of the Fate-Defying Supreme Demon within the fragment, once absorbed into the Virtual World Core, it becomes a reserve for the Virtual World.