(Gender-Reversed Society) I Woke Up to Find the World Had Become a Matriarchy

Xia Lianyun had a dream. For some reason, when she woke up, the world had become a matriarchy. In the dream, there was a World Tree that supported heaven and earth, a Mother River that gave birth to life, and all kinds of fantastical customs and rules. The only thing that hadn't changed was this: Humanity still walked upon the soil, working diligently to make a living. Theme: Humanity and greatness