"Ji Yeon" is the seventh episode of the American Broadcasting Company's fourth season of Lost and 79th episode overall. The episode was written by co-executive producers Edward Kitsis and Adam Horowitz, and directed by regular Lost editor Stephen Semel. It was first aired in the United States and Canada on March 13, 2008. It is the first episode to feature Harold Perrineau since his departure at the last episode of the second season, and features Zoë Bell as a guest star. "Ji Yeon" was watched by 12 million American viewers and received mostly positive reviews. Before the premiere of the fourth season, the principal cast of Lost called "Ji Yeon" the most shocking of the first seven episodes. The title of the episode is the name of Sun's daughter, and means "flower of wisdom."
