I think the young master is a seme. based on my gutt and the way this mangaka draws ukes - al cutely^^
I agree, when I first saw the two, i was like DAT BOI IS DA UKE!
It's not just you, they were clearly giving off mixed signals. At first it seemed like the young master would be the uke because of how he was acting, but when it came to the sex the servant started to get all submissive (giving him a blow job).
I have had the same opinion since the first time I read this I wish young master would have been the Uke to bad he is the seme
I couldnt tell who'd play what role .... it bothers me