@Kuroku Yep, I was pretty disappointed with the early chapters too, but it gets better as the story goes on. I still think Release That Witch is a much better story, but this one isn't bad either.
@Miranox RTW is way better since it has better grasp of advancement here everything is just introduce and then made immediately in an unrealistic speed but I overlook it since I just read it for fun and the harem.