When dottore goes to Fontaine to do some research on the gnosis, he notices that somebody has gotten to it first.

What could possibly go wrong when a deranged doctor and Sumeru's most merciless hitwoman strike a mutually beneficial arrangement to collude? It all starts with an unexpected twist when lethal secrets are revealed. dottore x fem!reader cover art : crycry84488 on tw

"One cannot deny your intelligence and your genius. But Doctor, I must affirm your brilliance cannot surpass mine." Thirsty for power and control, (Y/N) is a young man who finds himself expelled from the Akademiya due to his dangerous experiments and sadistic behaviours. This loss is quite bothering him, until an opportunity to work for The Doctor _ 2nd of the Eleven _ is presenting in front of him. This Harbinger will teach him everything needed to know in the scientist domain so he can be an asset to the Fatui. Two mad people would surely get along, right? TW: BLOOD, GORE, NSFW, DEATH (Every chapter has a warning concerning the potential sensible topics present but the fanfic is not recommended if you are uncomfortable with the topics above) Some spoilers can be spotted (basically, avoid reading if you haven't done Sumeru's Archon quest) art by @KAIKUN2021 on Twitter