Congrats on not having him just fuck a demon immediately author, most people would probably have a few trust issues, and other things to worry about considering they just showed up in another world so suddenly. They seem to be taking it extremely well outside of that one scene of crying, some would say that the other scenes of him just going along with the world and trying to go find her are unrealistic but I have scene plenty of workmen who just go with the flow of the job instead of thinking to hard about the specifics.
I do have to say tho, those breasts have to weight a ton. Just look at their absolute mass from that side shot on pg 8.