From Transmigrating to Great Xin to the Sanxingdui Civilization

In the year 2040, Tao Fang dies of illness, and his soul transmigrates into the body of a young Taoist novice in the Great Xin Dynasty.

It turns out this is another parallel world. In the year 22 AD, the seventeenth year of Great Xin, the Battle of Tianyang unfolds differently from the history he knows. Liu Xiu's army, which should have been saved by a meteorite falling from the sky, is annihilated on the Tianyang Plain by Wang Mang, who personally leads an army of five hundred thousand. In September of that same year, with no way out, Liu Xiu throws himself into the Yang River and drowns. Great Xin officially unifies the realm.

Tao Fang had assumed that, as one of many transmigrators, his wealth of modern knowledge would let him thrive in ancient times. Only now does he realize that the history of this world is nothing like the history he had heard about. It has not only a sound system of governance, advanced productivity, and ideal technology, but even its understanding of space and Earth goes far beyond anything he could have imagined. It completely upends his view of history.

In 255 AD, the 250th year of Great Xin, Tao Fang, the dynasty's foremost chancellor, General Ye Changtian, and Emperor Hong Li of Pingxin uncover the Sage's Treasure. At last, the truth behind the treasure, rumored about for more than 250 years, comes to light: apart from a few modern weapons left behind by Wang Mang, the founding emperor of Great Xin, the so-called treasure consists of a map pointing to a Sanxingdui archaeological site 800 meters beneath the Yang River.