Dear Friends,

After considering various aspects, in order to explain the theme and overall picture of this article more clearly, it was decided to add a prologue to the whole article. The prologue is published at the very beginning of the first volume.

As an apology, the two chapters of the prologue have been merged into one large chapter of 6,000 words, and the two chapters will replace the new chapter tonight. Sorry for disrupting everyone's reading.

Three thanks. On the afternoon of August 16, 2013.