Maou to Ryuuou ni Sodaterareta Shounen wa Gakuen Seikatsu wo Musou suru You desu - Ch. 16

[dbzclamp]

…the slave crest serves a warning to other girls saying that Rui is mine.

It's a sign that you're his property. It's anything, it makes it less likely that people will interpret your relationship as a romantic one.

 

[Kanelel]

You'd think after spending hundreds of years with the other two that it'd take him just a tad bit longer to become attached to someone else.

It's weird how they don't really acknowledge that he has spent 500 years talking to only two people. He spent 50 times as much time in there as he did in his whole life previously. He should feel awkward and weird talking to strangers for the first time in literally 500 years. I'm surprised he remembers anything ablut the outside world after that long. He should be reacting to everyone else in the world like they're aliens.

He didn't even have any friends before falling in the hole. He should be extremely hyperattached to the dragon and demon to the point that everyone else, no matter how well they get along, feel like strangers by comparison. It feels like he doesn't even miss them. Bizarre writing.

 

[Resomius__]

Girl just wanted a kiss but MC went all the way! Did he do foreplay?

I kinda wonder. True that the Queens only started to have fun together with MC after he ended his training. But we have no idea how long their "last" moment was. Maybe he stayed for a month or two more just for fun and enjoyment sake. And with that MC probably got quite good with the Ladys.
So jeah, he proably went for some foreplay.
And then Fucked her Back out.