I created an opening introduction when I was playing Solitaire on the forum. Because the setting is very interesting, I used it to continue writing. Because it is meant to be used for practicing, it may not be so rigorous, and there will more or less be some chapters that serve the audience... Although it is very difficult to do some H! But we still have to follow the trend of history...
Irregular updates, please be careful when jumping into pits = =