Just like the title, in short, it is just like the title.
It is purely separate from the main drama, and it is a collection of irresponsible, OOC, and discarded ideas that come up one by one, including various if lines, lsp, and ancient literature.
It's purely brain-based fun, written casually.
The purpose of opening a separate volume is purely to avoid being criticized for publishing the main text.
Mission: Everything is possible