The late Qin Dynasty accidentally took the elixir and fell asleep for 827 years!
Zhao Heng, the imperial physician of the Warring States Period, swallowed the elixir of immortality by mistake and was buried underground.
In the chaotic times at the end of the Sui Dynasty, Li Yuan's shock in Chang'an awakened him. Pre-Qin antiquities were exchanged for money, and a "relics hall" was opened in Xishi. He relied only on the medical skills accumulated over eight hundred years to survive.
He is a bystander in troubled times, but he rescues wounded soldiers, protects the sick, and prevents poisonous killings. His fingertips are stained with blood, but his heart is compassionate;
He is a witness to history, watching the war in Qianshui, the capture of the king at Hulao Pass, the bloodshed at Xuanwu Gate, and watching the rise and fall of dynasties with a cold eye.
Not involved in political intrigues, not correcting history, just in the bloody Tang Dynasty, being an immortal doctor who warms up individual lives!
See how the survivors of the Qin Dynasty took root in the troubled times of the early Tang Dynasty, stayed true to their original aspirations, and witnessed the blooming of flowers in the prosperous age!