I Just Want to Live an Ordinary Life but Sit on the Throne Alone

[No system] + [No rebirth] + [No time travel] + [Single female protagonist] + [Superpower] The world is facing an unprecedented disaster. Behind this disaster is the decline of so many countries and nations... On the ruins, human civilization has established seven federal countries, which are regarded as the last hope of human civilization. Lu Hen was an ordinary citizen living in a federal slum. An underground pipeline work allowed him to see the dangerous monster that should have appeared outside the federal country. It was during this encounter that Lu Hen accidentally came to a palace. This was not the real world, but more like a virtual world. Apart from the endless nothingness, there was only the palace standing on the ruins, proudly under the void. "Welcome back, great king!" The ancient and powerful voice came from the palace. It was singing, more like cheering, praying and looking forward to the arrival of its owner!