@Kekitus (also three months later ;-) ) I'get your point, tags as a whole can give you an impression of the setting but I would never rely on them too much, not only because of mistakes can happen, even more because personal opinion is quite different, if I pick up the romance tag: for one a mc who engages in a romantic relationship with some unimportant side char (just flirting, kissing or cuddling) is enough even if the main focus is completely elsewhere, for another, romance has to be a main plot point
and I would also say, the setting plays a role if I have the action tag combined with drama, shounen, sci-fi then I'm expecting gun fights, crashing cars/planes, laser and the like at least half the time - combined with shoujo, history, adventure, romance, I would expect some sword fights, an ambush or kidnapping and that only every few chapters
and after reading over thousand (real) books, I have to say, perfect stories (for you) are rare, maybe one percent was so good that I am completely immersed and reading it again and again