10. My Brother Loves Me Too Much (drama & movie) - ML and FL are adoptive siblings. That have been together their whole life, since FL was a baby, I believe. They fall in love, ML eventually knowing FL isn't blood related, but FL has no idea they aren't blood related but falls in love with her brother regardless.
Not sure if all the answers count. I don't have a topic so someone else can pick, but I'd say give it an hour or two to see if the original topic poster replies and says if any don't count.