This may contain spoilers.
The prince liked him since they are students then he nominated the uke, that's how uke got his position ┑(￣Д ￣)┍
I'm not sure if I remember correctly but I thought the prince recommended him for the king's guard or royal knight position ( the knights in white uniform) or something so that the uke would always be close to him but uke declined it and joined the other knights to help the common people. I could be wrong but this is what I remember
i remember that as you say.
Uke is really dumb and it's not cute ,it's annoying I wonder how he's able to get his position ,he is clearly incompetent.