Bishoujo Mangekyou: Kami ga Tsukuritamouta Shoujo-tachi

It was an era unknown. Long after the prosperity of the human civilization - once the ruler of the Earth - had waned, more time passed still... Reminiscent of the edge of the world, there was a place, and in that place the tower stood tall. In the tower a scientist lived. He was alone. For humanity had abandoned this place, he desired company. Left behind by the civilization no more, it was their scientific knowledge that he had in his hands. By using their magic-like technology, he finally set