At the foot of the sacred Mount Fujisan, Mirai Corporation has built an experimental city of the future.

Here, a living laboratory researched new robotics technologies and developed artificial intelligence. With the help of data and sensors, the interaction between people, the city, and physical objects took place, forming the concept of the "Internet of things".

After a while, metamorphoses began to occur with artificial intelligence and it bifurcated into a virtual embodiment and a physical entity. As a result, the botnet worm attacked the entire system, which led to complete "zeroing".