An Kui, a top civil engineer from the 21st century, died accidentally in a project accident. However, his soul traveled to an imaginary Dayin Dynasty and possessed the body of "An Kui" with the same name. The original owner was the concubine of the then Minister of Household Affairs. Due to her family's involvement in the dispute over the heir apparent, she was treated as a political victim by the new emperor. She was deposed from the throne and exiled to the cold and barren "Beihuang County" in the northernmost part of the empire to fend for herself.
