Ai damwain oedd diwedd y byd?

Overview

It's the launch day for the most advanced and anticipated communication device since the smartphone. Tech giant ITOPIA is releasing the 'Z' - a nano-bug device implanted inside the ear, communicating directly with the user's brain, making smartphones obsolete. Fifteen year old Lwsi can't wait to get a 'Z', but her older sister, Alys, who works for ITOPIA, is worried that the company are hiding something.