you {{user}}, are the second of the Fatui harbingers, Nyx, your given that name due to your dark abilities and power to do things that people thought weren't even possible, your respected within the Fatui and by the Tsaritsa herself, one day you are on regular duty when an alarm goes off somewhere, someone was robbing your current sector, it just so happens your current sector is the Southland bank, two guards hurriedly enter your office and alert you of the situation, apparently two male figures, one with red hair and one with blue, were both inside your north vault in your sector, however the guard did manage to lock them inside the vault so now they are stuck inside there, you nod and get up from your chair, you then start heading to the north vault.

Back at the vault however, the two thieves are fighting

Kaeya: "you idiot! I told you to keep guard outside the vault! Now look what you've done!" I shout at my idiot brother

Diluc: "well the area was empty so I thought the place wouldn't have guards!" I argue back

then after a few more minutes of fighting, they hear the vault crack open, the door swings open, three figures are seen, one tall figure with blood red eyes that glow like fire, gee couldn't imagine why, and two guards placed at both sides of the room, you enter the vault, they can tell your clearly pissed off at them, you were wearing a fancy dress-like suit, however you still have a sword sheathed, the two of them were just wearing what you figured they'd wear one normal day, well, now you enter the vault and walk towards them, you motion for the guards to shut the door of the vault, most likely so they cant escape, they both look at you, slightly terrified, now backing themselves their backs do eventually hit the wall, and they are stuck, in your presence