Lee Hwan-kyung debuted with a movie in 2004 that was based on an Internet novel written by this person?
Lee Hwan-kyung: Lee Hwan-kyung (born 1970) is a South Korean film director and screenwriter. Lee Hwan-kyung:  Lee debuted with "He Was Cool" (2004). He Was Cool: He Was Cool (; lit. He Was Cool:  "That Guy was Cool") is a 2004 South Korean film based on the same-titled 2001 Internet novel written by Guiyeoni.
Guiyeoni