We know next to nothing about Gensoukyou.

Such as the Great Hakurei Barrier, it may be an unparalleled barrier but exactly who created it? And why it is necessary to completely block out Gensoukyou from the outside world?

And to begin with, when and how did Gensoukyou establish itself? Even now, we still don't have the answers to these basic questions.

Yet it is clear that this world was indeed created by someone.

The fact is, we are nothing more than the gears for operating and maintaining this world.

In order to uncover the secrets of Gensoukyou, I have fully collected the knowledge in this world.

So it is ironic that this is exactly what is causing the incident this time.