It is the year 2125. Four decades have passed since human habitation began on Mars. Here, "stability" is a foreign concept. Under authoritarian rule by ISDA (the Inter-planetary Space Development Agency), discontent is brewing. Mars is silently in turmoil. In this atmosphere, "it" suddenly appears. And with it comes inexplicable supernatural phenomena. Who created it? Why is it here? And what does it mean for humankind? Hope? Catastrophe?

Lili E1102 is visually impaired. Born and raised on Mars, she endured grueling training to board the spaceship bound for Earth. She is determined to meet someone: Shiraishi Aoto, the young Earthling ISDA scientist. The two have a secret pact no one knows about. But on the day of departure, Lili is struck by disaster. And this triggers accelerated machinations on both Earth and Mars... And all is connected to "it"...