Choi Ji-woo is a South Korean actress. Considered one of South Korea's most beautiful women, she has received critical acclaim for her work in a wide range of melodramas, most notably Beautiful Days (2001), Winter Sonata (2002), Stairway to Heaven (2003), Air City (2007), Star's Lover (2008), The Suspicious Housekeeper (2013) and Temptation (2014), as well as the romantic comedy series Twenty Again (2015) and Woman with a Suitcase (2016).

Beautiful Days is a 2001 South Korean television drama series starring Lee Byung-hun, Choi Ji-woo, Ryu Si-won and Lee Jung-hyun. The drama is the first entry in director Lee Jang-soo's Heaven Trilogy which includes Stairways to Heaven in 2003 and Tree of Heaven in 2006. It aired on SBS from March 14 to May 31, 2001, on Wednesdays and Thursdays at 21:55 for 24 episodes.