Answer:
Asagai is a classmate of Beneatha's from Nigeria, and one of Beneatha's suitors. Asagai is proud of his African heritage, he hopes to return to Nigeria to help bring about positive change and modern advancements and tries to teach Beneatha about her heritage as well. Asagai being obvious contrast to Beneatha’s other suitor, has brought Beneatha to accept Asagai’s proposal of marriage and move to Nigeria with him suggests that he is, in a way, a savior for her.