On a day like any other, Key, the 32-year-old digital genius, is traveling through the digital world, solving problems in seconds using her superpower: she is a digital soul who dominates the digital world. That is, until her computer is hacked by a mysterious force which sends a message she can't decode on her own. Shocked by the intrusion into her personal laptop, she has only one goal: to unlock and find the source of the message. While conversing with her best friend, BMW i Vision Dee, she gathers clues and sets out to unravel a mystery—beginning a journey that will change her life.