무정(無情)
By 이광수
Yi Hyeong-sik, a young English teacher in colonial Seoul, is pulled between the gisaeng Pak Yeong-chae, once promised to him, and the well-bred Kim Seon-hyeong, whom he is expected to marry. Serialized in 1917, it is usually called the first modern Korean novel and ends with a flood that gathers its young people around a cause larger than their own hearts.
Summary written with Claude Sonnet 5.5.