Healer | she meets the ML as two different people, "healer" and a rookie reporter. She idolizes Healer at first, but as she slowly comes to know all of him, she falls in love with "the guy behind the mask".
Weightlifting Fairy Kim Bok Joo | except she idolizes and develops a crsuh on the 2ML.
My ID is Gangnam Beauty | FL had the wrong idea of the ML (thought him cool and unapproachable) but as she learns more about him she falls in love.
Black | also fits. FL has always idolized her childhood crush (ML).
She was Pretty | fits but with a role reversal. ML idolized his first crush and childhood friend. FL has changed a lot, though, but he eventually falls back in love with her.
Cheese in the Trap | Sort of fits. FL thought ML was strange and creepy at first, then falls in love with him as she gets to know him.