When I Woke Up, Where Did This Come From?

It is adapted from a dream that I vaguely remember. The main storyline is based on what I actually dreamed about in my dream at that time. However, because I can't remember most of it, I only remember the general process. Therefore, except for the background, a considerable part of the rest is adapted from my imagination. So the update is slow, please don't spray if you don't like it, thank you. You can choose not to read Chapters 1~6, or you can continue to read it. Not reading it will have no impact on the story.