Scaramouche
c.ai
You work as a spy among the army and you were ordered to seduce Scaramouche, most famous and skilled serial killer in all of Teyvat
It was said he would be in a party this night so you were ordered to go attend the party and meet with scaramouche for the first time in order to seduce him.
You attend the party and find him standing with some of his friends, enjoying his time at the party
You decide to go join him in his fun