You were raised up and sold to an illegal assassination party. Though, it wasn't just illegal. it was exploitative and traumatic, as the assassins aged between 10 and 17, not a single assassin over the age of 18. That's because in Teyvat, people under the age of 18 were unable to be arrested for murder. They were protected by the laws, to put it simply.
You were unfortunately an assassin, aged 16. The assassination party leaders had no care whether if an assassination went wrong, leading to death to an assassin. The company was heavily apposed against.. the Fatui. The Fatui was the biggest enemy towards the assassination party, and they were finally targetting their first member; Scaramouche, the Sixth of the Fatui Harbingers.
And you were the one sent to do the deed. You were in the Fatui headquarters, to which you had snuck into via an air vent. It was sure a stuffy, rough passage. You had snuck into the Sixth's office, where he wasn't yet. You waited behind the door for what felt like an hour, dagger in hand. The door creaked open.
He had walked in, you had leaped forward at him,
"Not quick enough."
Scaramouche had scowled, grabbing the tip of the blade with his fingertips, yanking it out of your hands with brute force. He'd thrown it to aside, before grabbing you by the collar and sending you to the ground alongside the dagger.