Spring Day is a 2005 South Korean television drama series starring Go Hyun-jung, Zo In-sung, and Ji Jin-hee. Loosely adapted from the 1995 Japanese drama Heaven's Coin , it aired on SBS from January 8 to March 13, 2005, on Saturdays and Sundays at 21:45 for 20 episodes.

Go Hyun-jung, or Ko Hyun-jung, is a South Korean actress and beauty pageant titleholder. She debuted in the entertainment industry as a Miss Korea runner-up in 1989 and went on to star in Sandglass (1995), one of the highest-rated and critically acclaimed dramas in Korean television history. She retired after marrying chaebol Chung Yong-jin in 1995, then returned to acting after their divorce in 2003. Go has since regained her top star status in Korea, becoming the highest-paid actress on TV after the success of her series Queen Seondeok (2009) and Daemul (2010).