Jiang Huai'an lived three lives.
First life: She was the adopted daughter of Governor Jiang of Heyan Commandery, raised in luxury as a replacement for the daughter they had lost to kidnappers as a child. Then, when Jiang Huai'an was sixteen, their biological daughter came home.
Jiang Huai'an: Well, that was awkward.
Then Emperor Tianqi died, the court fell into turmoil, and powerful ministers took control. The Jiang family was implicated, stripped of its property, and exiled. For some inexplicable reason, Jiang Huai'an was bound to a "Household Intrigue System." Starting as a convicted servant in a prince's manor, she worked her way up to become the saintly empress dowager. She kept the emperor under her thumb, governed the court, and saved the dynasty from collapse, until she worked herself to death at her desk.
Second life: She didn't drink Granny Meng's soup and was born beneath the red flag. Her family had a sick father, a disabled mother, a blind younger sister, and a broken home, so she joined the army and fought to get ahead.
Third life: The moment she opened her eyes, she was back in her first life.
She struggled to survive on the road to exile, navigated schemes within the prince's manor, and faced deadly conflicts in the imperial harem and the court. The Xia Dynasty's emperor was incompetent, and rebellions were breaking out everywhere. She fought for power with one hand and held the empire together with the other, trying to have it both ways.
And ended up working herself to death.
Jiang Huai'an: The Xia Dynasty is rotten, and I'm tired. I don't want to play household intrigue or walk the same path through the harem again. So let's start over and have some fun with a rebellion.
System: ...
I'm a Household Intrigue System!! Household intrigue!!!! You can't feed the fertility pill to an enemy general! He's a man!! A man!!
Theme: No matter what hardships you face, never give up on yourself. If you keep striving, people can overcome fate itself.