A story can most certainly be a lot of things. I have a series called "Her Beasts", which is a gamelit city-kingdom building reverse harem fantasy romance set in a primitive beastworld. That's the short description, but you can then branch off to make a tag list like:
Primitive Setting, Reverse Harem, Shifters, Smut, Mates / Bonding, Virgin ML, Royalty, Chosen One, Fantasy Creatures, Mythological Creatures, Training Moments, Secrets, Bittersweet Happily Ever After, Redemption, Beauty & The Beast, Bisexual ML, Obsessive ML, City Management, Kingdom Building, Werewolf, Wolf Shifter, Phoenix Shifter, Fox Shifter, Beaver Shifter, Bunny Shifter, Scorpion Shifter, Owl Shifter, Mythological Creatures, System, Gamelit, Beastworld, Slow Progression, etc.
I could likely list a hundred more relevant tropes / tags that are all relevant to just that one story. As you can see, most of the tags go together and are just saying the same thing as that initial description of the series, just with more specific things listed. Almost all of those are legit tags that at least one site like this one has as a preset option to label your stories with as well. It's not just things I made up.