Mistress/servant/bodyguard dramas?

Something with maybe a rich girl and a butler, or a newly rich girl and the butler.  Something maybe like Cinderella and the 4 knights only if the Butler was the male lead.  It's also ok if the girl is spoiled and a brat.  I'd prefer it if the guy wasn't petty and obnoxious and was more mature...and you know...wonderful.  :D  

Please Note:  I have not seen all of these, and the ones I did, I rated low :((

My Fair Lady -- K-drama --- he may be immature at first
The Princess --- C-drama --- remake of the above
Hayate the Combat Butler ---  T-drama ---- 
Mei-chan no Shitsuji --- J-dorama ---


99 Days with a Star -- listed in post above , is bodyguard ... But it is probably better than any of the dramas I listed.

 http://mydramalist.com/2998-nazotoki-wa-dinner-no-ato-de
not romantic but the mistress is pretty bratty and amusing and the butler is cheeky. it's a fun drama 

Kimi wa Petto... could count as master/servant... maybe... I preferred the film over the drama though~