It may have been unconsciously, but humans tend to perceive the world with their own viewpoint. This world is filled with light and darkness. Those two collide in our past, shaping our own world. How does the world look if it’s a world where everything is based on our own world that we form?

In Aourth…Year 2022 PA…Zone 66…
A mirror of our own Earth’s world. Everything is stagnated. The planet we don’t wish to see. Many similar cultures, but it is still a fantastical world.

The thread of fate is tied to a girl with the name Murazuki Shizu. The girl that witnesses ’the light’ during the day and night. Who is the original mirror of her? What is beneath the Moonlit Twilight?