A Korean novel written by a scholar of late Joseon period, Manjung Kim (1637-1692) about a discord of wife and concubine. It is also called ‘Sashi namjeonggi’. It has been widely read with more than 30 different versions, and one of them has been translated into Chinese by his great grandson Chuntaek Kim. Manjung Kim wrote this novel during his exile to awaken Sukjong who expulsed Queen Inhyeong and installed concubine Heebin Jang as the Queen. Because of such moral lesson, this novel came to be recognized by the scholars who had been reprobating the novel and therefore opened a new way for late Joseon period Korean novels.