The worldbuilding is not really exist at all dare I say. It just generic fantasy environment with monster, human, medieval architecture, swords and magic so on and so on I feel like when you’ve viewed 1 fantasy anime, you’ll have found all of them. We've appear a long way On http://charliewfegh.blogsidea.com/9487655/a-review-of-tsuki-ga-michibiku-isekai-douchuu-novel