On the first day of the sixth lunar month in the ninth year of Wude, Venus appeared in broad daylight.
When Shen Du opened his eyes, a blade was already at his throat. He had fallen into Li Yuan's Sea Pond.
The Xuanwu Gate Incident was only three days away.
Li Shimin was ready to strike, Li Jiancheng was planning to strike first, and Li Yuan was still out rowing.
All Shen Du had was a camping backpack and a Kaiyuan Tongbao coin that could take him back to the modern age.
He presented white sugar to the emperor, cured his headaches with ibuprofen, and earned the title of "Sir" from Yuchi Gong with a telescope.
When he brought a Tang gold ingot back to the present, the appraiser said, "It's genuine gold. It's just too new."
Rewrite history? No. I just want fewer people to die in the Tang Dynasty.
The crown prince doesn't want the throne? No problem. There's a silver mountain overseas. Your Highness can go be emperor there.