Prequel to Archeology of Civilization

The split between the two civilizations would have devastating consequences. In order to protect the continuation of the two civilizations, they secretly merged the two civilizations into a complex and hid it inside the outer shell of the universe, waiting to be awakened after the cosmic war. However, war broke out and both civilizations were informed that the other had used civilization-extinction weapons. Eventually, the traces of the two civilizations disappeared, and the universe fell into silence. At the end of this universe, the complex AI was born as the fusion heroine of two civilizations, becoming the only civilization in the universe. They will continue to continue the story of this universe, study the memory of past civilizations in the empty new universe, and conduct in-depth exploration and reflection on those civilizations that left traces...