Shi Qiuning transmigrates into the body of a princess who disguises herself as a man.
Then she realizes that she hasn't just transmigrated: she's transmigrated into a book.
The princess, who disguises herself as a man, has come of age and specifically chosen a poor scholar who passed the imperial exams and earned the title of tanhua.
Before the wedding, the two reached an agreement: the princess would help the tanhua rise through the ranks, but he could never touch "her."
But the tanhua accidentally discovers the princess's identity and repeatedly uses it to threaten her. He eventually gets caught up in the struggle for imperial power and brings ruin upon his entire maternal family.
And when a treacherous prince takes the throne, the nation is plunged into chaos and war.
Shi Qiuning has only just transmigrated when she catches the tanhua threatening him, demanding that he ask his grandfather, the Grand Chancellor, to protect a corrupt official.
With a scoff, she turns around, draws her sword, and kills the consort.
She tells the world only that the consort died suddenly of an illness.
The tanhua's death is too suspicious to ignore, so the old emperor can only punish her by sending her to the princess's fief.
Away from the whirlpool of power in the capital, Shi Qiuning thrives.
Wait, this poor farmer's son is destined to become a powerful minister who dies for his country in the book, and right now he's selling himself to pay for his mother's burial.
Ahem. This princess will gladly take him in.
Wait again, this dying young soldier from the border is supposed to defend the nation to his last breath in the book. Unfortunately, he lost an arm in the past and ultimately dies by the enemy's blade.
Ahem. This princess will gladly take him in too.
Hold on, there's another one. This reclusive strategist comes down from the mountains for the first time, but doesn't understand the ways of the world. Local officials mistreat him, and he eventually defects to another country.
Ahem. Sorry, this princess will gladly take him in too.
Rumors in the court say that since the princess went to her fief, she's been debauched and immoral, keeping five, six, seven, eight male lovers.
After all, she's just a widowed princess. People can gossip a little, but that's all.
But then the court descends into chaos. The princes only know how to build factions, and the people are destitute, while the princess's fief grows ever more prosperous and its people live in peace.
Later, the princes' rivalries grow fiercer. Some die, and others are crippled.
In the end, only one prince remains, a mixed-blood son of a foreign princess who married into the royal family.
The old emperor is gravely ill, the nation is in turmoil, and the officials seek their own way out. Her grandfather, the Grand Chancellor, leads a group of loyal ministers and generals straight to the princess's fief and presents her with a yellow robe embroidered with a dragon.
"For the good of the realm, please accept the throne."
Shi Qiuning: "???"
What's going on? How did I go from being a princess to being the sovereign?
Theme: Establish a moral compass for the world, secure the people's livelihood, carry on the lost teachings of the sages, and bring lasting peace to the generations to come.