"Thank you, sir." That's the title they're most used to, so go for it, Cao Pi. It's not like they have a proper name or anything. The Soldier inclines their head, steps back, lets Cao Pi continue on his way.

And then, when he's well gone, they head off another direction, into the dark, away from the actual people. It's time for some tree punching to get out the anger at themselves for this whole dumb-shit situation and their own stupid issues.