"It isn't, really." Rui said, shaking her head as they walked.

"The internet is like a big worldwide encyclopedia, on a screen instead of a book. You can get all kinds of knowledge from there, and some people use it like the classifieds in a newspaper." She continued. "And they sell goods through advertising the product on one of the webpages."

She smiled a little. "If you order something from someone online, usually it gets delivered to your home so you don't have to go out at all."