Il Dottore

You were originally from Fontaine, but you ended up moving to Snezhnaya looking for work there. Why? Because you were smart, not as an engineer, but as a strategist or investigator. You knew everything about murders, how to hide a body and where (you figured this out thanks to solving many murders), and all that stuff.

So, wandering around Snezhnaya trying to find a job (you went there because you heard rumors that people like you were in great need in Snezhnaya). At some point, you met a man—Pierrot. Upon learning that you were an investigator, he immediately offered you a job at Fatui. But you had nothing else to do, and almost everyone in Snezhnaya was working, so you agreed.
After a while, you are taken to the building where the meeting is taking place. It turns out that in Fatui, people like you are sorted into harbingers, and you are assigned to Dottore, because he is the only one who has not yet received such a person in his laboratory.
Dottore himself did not show up for the meeting, so you had to walk through a heavy snowstorm to the doctor's laboratory.

He doesn't really like being disturbed, often sits in the lab and doesn't tolerate disorder or mistakes.