The palace maid Huan'er was selected as the medicine guide for His Royal Highness the Prince of the East Palace.
If nothing unexpected happens, today will be the end of her life, and her fresh and beautiful life will be turned into a good tonic for the prince's hidden illness.
There were still two hours before dawn. Unable to sleep, she found a firearm under her pillow - a loaded Colt m1873 single-action revolver.
She didn't know where the gun came from, let alone its name, but when she grasped the cool wooden handle, she knew how to use this murderous weapon, as if she was born with it.
Her time is running out and she wants to live. She needed to think carefully: who should she shoot at with the six bullets in the revolver.