The most popular Korean drama in these days might be this one. <<That winter, wind blows>> Cast are very remarkable - Insung Jo, Hyekyo Song. And this song above is one of OST album, I would recommend you to push play button soon. :D
Song Hye-kyo as Oh Young. She became estranged from her mother and older brother when her parents divorced when she was a child. Now legally blind, she is the sole heiress to a giant conglomerate after her father passes away.
Kim Bum as Park Jin-sung, Oh Soo's best friend and right-hand man. Hot-head Jin-sung dreams of scraping up enough money to buy his father an organic cattle farm.
Jung Eun-ji as Moon Hee-sun, the younger sister of Hee-joo, Oh Soo's first love. Hee-sun is a quirky, tomboyish girl with a deep fondness for flowers and for her sister. Though Hee-sun tries to despise Soo after he leaves Hee-joo, she finds that she cannot.