I guess it's a fine novel. That remind me a lot Full Metal Panic that I watched years ago when i was still a kiddo. Some kind of comedy/slice of life/misunderstang/romance. Even though, i didn't read a lot (40 chapters) i think i mostly saw everything than can be shown and in the genre that seem quite easy to guess what will happen/will happen not. A good read to relieve you from some boredom.
But I will quickly end my read on it for a single big reason. It's premium since chapter 85, they're more than 200+ chapters. That's way too early, i barely got 20-25 gemstone per day (if i don't forget to check). Not adding the fact, it's not some kind of addictive novel, you read it, you can creep a smile time to time but that's all. That's also why the novel is falling in the ranking again and again the more chapters is going on. I can't check if the quality is going down but i don't think so. Think that's simply because it's a premium original with a lot of chapters and the story isn't addictive enough to throw all your wealth into it. They will be some fun joke and funny moments but you can found these moments in others stuffs without having to sacrifice your read on your favorites novels who are more unique.
Wishing still good luck to the author, i think that if he's writing that novel just for his own pleasure. That's perfect. If he's writing it to get a living on it, that's going to be a bit more difficult.