what is the opening doing?

The opening of this story is telling us a little about his life. And what he is doing with his life. I think the opening id trying to get our attention with the sexual part. For us to bring our imagination and imagine Koko. At this point we don’t know if she is pretty or if she is deformed. There are a lot of questions that we want answers. Like is her mother really sick, or how did she really got his number? The writer is trying to get us to read more and more. Now we want to know everything and how is the story going to finish. It gives a little information about the characters. How they think. He says he is in love but he don’t remember it can be anyone talking to him on the phone. We want to know what is going to happen next.