
It's actually very common to give someone an enema, and what the seme does after is called "aftercare" that subs needs to get after hard play. Nothing extreme happened so far, but as BDSM is very psychological and the uke didn't seem very experienced in it, seme did well to take care of him and be gentle afterwards. It's just common sense and sign that a dom is experienced and a good one.
BDSM is a really fascinating world and there are so many things one can do. :)
The many other BDSM manga I read were just plain wrong (except Yoru wa tomodachi, which I love, and name others if you know them) so it's very refreshing to see BDSM done well for once!
I kinda got scared!!Compared to the other BDSM that I read, what he did to the uke is not the typical BDSM play I think. I find it quite interesting huh. The seme harshly plays yet has that gentle and caring aura. Just look how he carries the uke afterwards.