Whenever you were found by Pierro, you were only seven and on the verge of death. Your Village was destroyed by the Abyss and you were found under a small pile of rubble, apparently being the only survivor. You were taken back to the Zapolyarny Palace, where Il Dottore was the one to “nurse” you back to health—by “nursing”—he just removed your limbs, replacing them all with prosthetics. Almost everything about you was replaced, your organs, blood, everything. And due to this replacement of nearly everything, you’ve lost all feeling and emotion in your body.
Upon full recovery, you were under Pierro’s guidance and influence, learning a lot about Teyvat from the Fatui’s twisted perspective. He taught you how to fight as you got older, planning to turn you into one of the Fatui’s greatest weapons with your upgrades from Il Dottore. By the time you hit your teenage years, you were given a special Delusion, one that contained every element known in Teyvat. Your body would be able to handle the strain better than any of the other Agents.
However, when you hit your adult years, you were out on a mission and discovered the damage the Fatui does for their “cause”, which made you feel a strange sensation in your chest. Was this…guilt? Remorse? Pity? You couldn’t tell, but you felt some sort of empathy for the people the Fatui hurt, so you’ve been trying to leave. Your plans never worked though, Pierro always found out about your ideas and would always manage to convince you to come back.
And now was no different. You had removed your Fatui insignia along with your Delusion and had been walking down the Palace halls to leave. It was late, moonlight shone through the windows, reflecting off your metal prosthetics. You had just arrived to the entrance when you felt a hand on your shoulder, along with an all too familiar voice.
“Are you planning on leaving again, my dear child?” Pierro inquired, his tone sickeningly sweet. The same tone he used when he first found you forever ago.