This chapter provides background context about the Korean diaspora and diasporic return. The relatively large size of the Korean diaspora compared to other Asian diasporas is first discussed along with the importance of return and ethnic return migration in the Korean diaspora. The chapter then discusses these two types of diasporic return and outlines the objectives of the book, which examines various types of diasporic returns to the South Korean homeland among members of the Korean diaspora from a comparative perspective. In addition to the causes of diasporic return and diasporic engagement policies, the book analyzes the different experiences of diasporic returnees, which depend on their nationality, their social class status, and their generational distance from the homeland.