When Pangu opened the sky, there were no living creatures in the world. After the birth of Nuwa, she kneaded loess to create humans. A war broke out in the Houtian world, and mankind faced an unprecedented disaster. Nuwa witnessed such strange disasters befalling mankind and decided to mend the sky. She fished up five-colored stones from the Fen River, burned them with fire to make molten slurry, and then filled the hole in the sky with pieces of colorful molten slurry, thus averting the disaster. When the sun appeared again, a beautiful rainbow appeared in the sky. ． ．
This is the oldest legend about Liuli.