So-called [humans] were nothing more than sufficiently complex machines.
If a certain part were dismantled and modifications made somewhere, the machine's performance could easily be greatly improved. Regardless of whether they possessed a Vision, regardless of their physique or martial skills, [optimized humans] should all be able to display power beyond common sense.
Treating humans as machines had always been the Doctor's research philosophy, and [perfect humans] had always been his pursuit.
For precisely this reason, the Doctor had begun conducting inhumane human experiments long ago. Of course, the Tsaritsa and the other high-ranking Harbingers would never agree to let him experiment on their own citizens, so he had used Snezhnaya's power to abduct people from other nations to obtain enough human specimens.
Of these, the Doctor preferred using the people of Sumeru.
There were many reasons. First, the Doctor had been expelled from the Akademiya, so this was also revenge against the Akademiya;
Second, Sumeru was not a stable place, especially its desert regions, where conditions were already harsh, making the disappearance of a few people only natural;
Third, there was the incurable disease found only in Sumeru-Eleazar. Everyone in Sumeru knew that once they contracted it, all they could do was wait for death. At such a time, all it took was a little coaxing: Snezhnaya had a cure for Eleazar. Patients with nowhere left to turn would eagerly make their own way to Snezhnaya.
Collei had been one such case. After she contracted Eleazar, her own parents had delivered her into the Doctor's hands. His subordinates had injected her with Archon Residue, and that painful experience had left Collei with deep psychological scars.
Fortunately, however, she had survived and escaped, reaching Mondstadt after narrowly avoiding death.
Under Amber's influence, she had regained her kind nature. Lisa and