There are two major relationships in The Kite Runner. One is between the protagonist and his father. The other is between the protagonist and his best friend. Because the protagonist's best friend is also his servant, though, and a member of the discriminated against ethnic minority, the novel presents a relationship that is fairly complex. Should love for a friend outweigh the divisions of class and ethnicity? Or are these divisions too far-reaching? To make matters more complicated, the protagonist later learns his best friend is actually his half-brother. In some ways, this revelation dissolves the earlier problems posed by ethnicity, and Hosseini poses a new question: Can ethnicity divide the members of a family?