Heirs Of Ancient Civilization

When a magician who had fled to Earth lost all his magical powers, but then obtained the legacy of the Hana super civilization, the first civilization of the Earth era, during an accidental archaeological excavation, how was he to make use of it? Should he choose to live an ordinary life, or should he use the technology and abilities that far surpass modern civilization to create a world of his own? However, many things are beyond one's control. After the Hana civilization resurfaced, the second