Humans use a primitive form of electronic communication to speak with others who are far away. There are many ways to exploit, hinder, and destroy these digital information boxes, which will be covered extensively in Unit 13.
This scene establishes Nami as being more introspective and thoughtful than the rest. She is our virginal, pure final girl of the series who vents her needs and emotions not in the tawdry and conquest-filled ways of her friends, but in an innocent online friendship with a boy her age in another country.