What is the author's style in Mrs. Plum by Ezekiel Mphahlele?

The story is told in the first person by Karabo, speaking to an unseen reader or listener. Everything that happens, therefore, is filtered through Karabo's consciousness. She reports what she sees and hears, and describes her own reactions to events in the story. But Karabo is not an introspective person, and her reactions tend to be impressions or actions rather than long passages of rational analysis. For example, she reports that when her former employer's cousin touched her inappropriately, she "asked the madam that very day to give me my money and let me go." She does not reflect on her compromised dignity or her position but lets her actions speak for themselves. Other characters, including Mrs. Plum and Kate, are presented only through their speech and action; the reader is not privy to their thoughts.