After Noel's narration, Bai Pu understood the course of events.
Noel was among the first batch of alchemists researching how to restore the Dead Plague back to humans.
Qin had already mentioned that all such attempts had ended in failure. Those Dead Plague were not cured; instead, they became powerful First Generation Mutants!
Noel's son, after being infected with the Flesh and Blood Plague, also became a Dead Plague.
In an attempt to save his son, Noel began forbidden research, resulting in his son becoming the Blood Mist Butcher, who killed Noel's wife and neighbors. Noel smeared an alchemy potion on himself to cover his scent, narrowly escaping disaster.
Devastated by the blow, Noel was despondent.
What made him even more hopeless was that his son, the mutant monster he had created, continued to slaughter living beings, his hands stained with sin.
