Masa I think your comments are a wonderful alternate perspective and I'm glad you're watching and commenting on the show too. I try to avoid applying much mental effort when watching shows if I can get away with it so I often don't get it when you say the story isn't being 'well delivered'. In particular I don't understand what's wrong with Kusakabe explaining magic and the Red Night and such. If some knowledgeable character didn't exist in universe to explain all this stuff to the noob main character then how would we in the audience know anything? Or are we not supposed to know anything?
Anyway, as far as I'm concerned this show is filling a niche that needs to be filled. Every season there needs to be at least one show about a random guy born with a magic/demonic/special power he didn't know about until the first episodes. This guy has to fight unambiguously evil creatures while 'romancing' at least one girl and typically more than one. I think this is an anime staple in the same way the medical show or police procedural show are staples in American TV.