Preface to the Spirit Cage

Spirit Cage - Preface, this should be the correct title of the book. This book respects the original work "Spirit Cage" and will not make much changes. It also makes certain supplements to the original world view. If there are any deficiencies, please leave a message in the discussion area and tell the author, who will make changes. Introduction to the book: An unprecedented geological disaster destroyed the entire human civilization, and at the same time, a never-before-seen ecosystem emerged from the ground, the Mana Ecology. Is it a man-made disaster or a natural disaster?