"The Whole Truth" is the 41st episode of Lost. It is the 16th episode of the second season. The episode was directed by Karen Gaviola, and written by Elizabeth Sarnoff and Christina M. Kim. It first aired on March 22, 2006, on ABC. The character of Sun Kwon (Yunjin Kim) is featured in the episode's flashbacks, which revolve around her and Jin Kwon's (Daniel Dae Kim) fertility problems.