Actually, merely changing the history of a million people would be one thing.
The problem now is that the history of this million people has been altered, but on the entire planet there are billions of people, and the history of others seemingly hasn't been altered.
This results in a logical conflict.
Because the history of those billions is normal, established by Su Yu's Mechanical City, splitting into three hundred cities, then developing and propagating, most people greatly admire Su Yu.
Yet the history of this million comes from the altered dark Shelter No. 73, harboring deep-seated hatred towards Su Yu.
This way, the various histories don't match.
If considering the history of Shelter No. 73, many people wouldn't be born at all, and there wouldn't be so many people.
Because of this logical conflict, many people's historical timelines are fluctuating, showing signs of collapse!
Many people's bodies start switching between translucent and solid states.
