InfinitelyYours Typically you can tell by the title, some BTS ones sound like romance titles, k-pop related like managers or idols. There seems to be quite a bit of supernatural-ish ones too. The unrelated fan fictions seem to be anime/manga ones and are often something to do with power or something.
Anyway, one quick look at the synopsis and usually you can tell. The top three are sadly not BTS ones. :sweat_smile: