Yi San, also known as Lee San, Wind of the Palace, is a 2007 South Korean historical drama, starring Lee Seo-jin and Han Ji-min. It aired on MBC from September 17, 2007 to June 16, 2008 on Mondays and Tuesdays at 21:55. The series was directed by Lee Byung-hoon, who also created the award-winning television series Dae Jang Geum.

Lee Seo-jin is a South Korean actor. He is best known for the reality shows Three Meals a Day and Grandpa Over Flowers. As an actor, he came to prominence with his leading roles in television series Damo (2003), Phoenix (2004), Lovers (2006), Yi San (2007) and Marriage Contract (2016).