The artificial lifeforms known as Greeed were the result of a mistake made by alchemists in the past.
They have the right to live on this Earth, but we cannot let the Greeed run amok just because people in the past made a mistake.
So accept the punishment of nature.
This book adds plenty of OOO headcanon and revised settings. If anything is unclear, the settings in the book take precedence.
It shares a setting with Kamen Rider M and tells an OOO story, but you can read it without having read the previous book. (Probably. Quietly.)
Toei Plot-Hole-Filling Department: 633354316
For the answer, you can just write any line from OOO.
