Boys over Fowers was mine, and I fell in love with two male leads who are but perfect mates for the female lead.
Boys over Flowers.
Mine was Spy Myung Wol :) such a good drama with Han Ye Seul and Eric from Shinhwa

You're Beautiful.
Hana yori dango lol
Mine was play full kiss.....i decided to watch it coz of the anime "itazura na kiss" which hooked me up with k-dramas :D
kingdom of the winds
First drama i watched is Boys Over Flower
but the official 1st drama is He's Beautiful bc i repeat this drama so many times that i cant even count with my fingers XD
Min was Big / coffee prince ✌
I watched K-dramas so long ago like Glass Slippers (in some Chinese dub that I didn't even know they were Korean then), but I think Cinderella's Sister was the first that got me to continue watching them. (: