The first Hariko no Otome novel starts out okayish only to get weird halfway through when an abnormal focus is placed on the protagonist’s appearance. It then gets downright terrible toward the end when sudden dungeon-delving and action take center stage. So, ultimately, I can’t recommended bothering with this mess of a book.
Ore no Shoukanjuu, Shinderu: My summon Pandora. But dead. is also a bit strange in that it feels like it should be a battle shounen manga rather than a light novel. It doesn’t really read like a novel at all, to the point I have to suggest reading the manga adaptation instead (despite the fact that I despise manga).