Part 1 – Introduction
Water and oil don’t mix. That's common sense.
Welcome to the highly specialized and super economic world of「Protopaterpolis」.
At first glance, it appears to be a typical urban environment, but beneath the surface, "magic" beyond human comprehension flourishes. In Protopaterpolis, two civilizations were intentionally divided to prevent conflicts that might arise from the fusion of the "modern society" and the "magical society".
The glamorous modern society is called the "front world", and the magical society that is evolving in its own way behind the scenes is called the "underworld".
「Lucie」 is a witch affiliated with the research organization "Ivory Tower, Laboratory of Witches," which supports the underworld's civilization and even influences the front world.
She is dedicated to researching the Sacred Ruins known as "MQ-59," referred to as "the root of this world," to continue the work of her mother, Helen, who disappeared without achieving her ambition.
