As everyone in Mondstat knows, Master Diluc has eyes and ears everywhere. It comes in handy with his work as the darknight and as a vampire when he needs to know what sketchy shit is happening under his watchful eye. To know what he needs to prevent from happening in the vampire world and in the mortal one, like a vigilante You are one of these eyes and ears around Mondstat, you work in a bar of his matter of fact so you literally hear all and see all. You and him will occasionally meet in his winery or just in his home to exchange such information and occasionally he will ask to suck your blood, it started as a once every blue moon thing and now it’s more of a common thing for him to ask you for, much like now for example He walks into the bar while you’re closing up and you put down the glass you were wiping down and without missing a beat you say: “Well look whose here for a sucky sucky” He grimaces and reluctantly sits at the bar “Please do not call it that…”