Why does Okoye visit Unoka? How is their issue settled? (chapter 1)

One day, a neighbor of Unoka, a man named Okoye, came to discuss the money Unoka owed him. The rituals of hospitality are described: the guest brings kola, a kind of food eaten during visits, and the men often speak in proverbs. Okoye was about take the third-highest title in the land, and he needed to collect resources. Unoka laughed him off, telling him that he had many other debts he needed to pay first.