Educando a la Princesa
궁 (original)
Starring Ju Ji-hoon, Yoon Eun-hye, Song Ji-hyo, Kim Jeong-hoon, Lee Yoon-ji, Kim Hye-ja, Yoon Yoo-sun, Shim Hye-jin, Park Chan-hwan, Im Ye-jin
Watch "Educando a la Princesa" on Rakuten Viki released in 2006. It's a drama and fantasy show, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of show, and is currently available to watch for free.