The best drama I've ever seen is...
BOYS BEFORE FLOWERS!
Yeon Woo is an average girl whose family owns a dry-cleaning shop that is located near the luxurious and well-known Shin Hwa College. Yeon Woo meets the four most richest and spoiled boys when she delivers laundry to the school one day. The boys are known as the F4 and cause trouble to those who speak out against them.
This drama is on the first place in the top 25 right now! I don't understand korean, so I watch it with english subtitles. You can watch it here: x