I think maybe lord? There's a lot of context that isn't explained well in this story. They only sprinkle bits and pieces here and there. But the MC is not the first lord of the angel tribe (he was around the 6th or so). Whenever the lord dies the progress resets but the "npcs" seem to remember everything. And when I say that the lords die I mean their last death. Because every lord has multiple lives (idr if it was 4 or what). I think what this knight is trying to tell mc is that he won't serve any other lord after him.

Anyone know what he meant by 'you're my last'? Lord? Crush?