In A.W.1500, through D.B.System the materialization of network resources, it is no longer an illusion. It has become part of the culture
and integrated into our lives.
After 734 Year, there is an unpredictable raid. Someone generates a lot of data pets through the 「D.B.System」 and instructs them to attack indiscriminately.
Death is not the end, but another start, he was born again through high-tech technology, he became a robot.
Many people died, they can only flee to their cities, Searching for safe areas to stay alive.
The player is a boy in the world, he died in this raid.
The following story is said
「what happened after he became a robot」