In the winter of Yong'an Year 21, Shen Zhiwei, the orphaned daughter of the Grand Astrologer, drank poison in the imperial prison. To her dying breath, she believed that Xiao Ce, the Northern Frontier General, had helped frame her entire family.
That same year, Xiao Ce died in battle in Black Pine Forest. As he drew his last breath, he clutched a defense map bearing the seal of the Bureau of Astronomy, having hated Shen Zhiwei for fourteen years.
Reborn together, they returned to three days before the fall of the Shen family, only to discover that the blood feud between them, spanning two lifetimes, was an elaborate deception orchestrated by the treacherous chancellor Li Song.
This time, Shen Zhiwei wields her brush to unravel the stars. Drawing on her skill in investigating criminal cases, she finds ironclad evidence in secret chambers, clears her father's name, solves a string of connected mysteries, and gradually tears away the veil concealing the truth at court.
Xiao Ce takes up his blade to defend the realm, leading a hundred thousand frontier troops to root out traitors and repel foreign enemies, becoming her strongest ally.
Once enemies, now comrades, the two stand shoulder to shoulder. They unravel one mystery after another to thwart a grand rebellion, safeguarding the history of the ages and the vast realm, while making those who wronged them pay for their crimes in blood!
