an Entity references as follows:
Prince Hours (Korean: 궁S; Hanja: 宮S; RR: Gung S; lit. "Palace S") is a 2007 South Korean romantic comedy television series, starring Seven, Huh E-jae, Kang Doo and Park Shin-hye. It is a spin-off of the 2006 series Goong (also known as Princess Hours), both were directed by Hwang In-roi and produced by Group Eight. Goong S aired on MBC from January 10 to March 15, 2007 on Wednesdays and Thursdays at 21:55 for 20 episodes.