Dongfang Bubai, literally "Invincible East", is a fictional character in the wuxia novel The Smiling, Proud Wanderer by Jin Yong. He is the leader of the Sun Moon Holy Cult (日月神教), an "unorthodox" martial arts school. In his quest to dominate the wulin (martial artists' community), he castrated himself to fulfil the prerequisite for learning the skills in a martial arts manual known as the Sunflower Manual (葵花寶典), and became a formidable martial artist after mastering those skills. His castration and supreme prowess in martial arts make him one of the most memorable characters in Jin Yong's wuxia universe even though he appears in only one chapter of the novel. His name has also become virtually synonymous with homosexuality and LGBT sexual orientations in Chinese popular culture.