This book could really be categorized as either science fiction or theology, because its main storyline explores the truth of the universe and the nature of the existence of gods.
Legend speaks of the Three Realms and Six Paths; in the scientific community, there is the hypothesis of parallel worlds. In many respects, theology and science are actually in agreement, though in their early stages they may seem to take opposite paths.
Many things considered scientific have gone astray. They use all kinds of hypotheses to explain the phenomena that exist, yet cannot explain those very hypotheses. The world is multidimensional, but we can only see three dimensions. We cannot observe what lies in higher dimensions, or even imagine it.
One day, the Dark Demon Realm and the Human Realm overlap. The spaces that had been separated are torn open, and vast amounts of dark matter flood into Earth, changing every living thing. And because time flows differently in the two realms, all kinds of chaos ensue.
The protagonist isn't...
This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.