After the princess was reborn, she was forced to bind to the powerful country system

[The dark and ruthless villain, the loyal male protagonist VS the wanton and flamboyant white-cut black princess]
In his previous life, Xia Hanyu was unable to judge people well and was exploited by others, which led to the destruction of his country. He was unwilling to accept this and jumped into the country. In a blink of an eye, he was reborn back to the time before the destruction of his country and was forced to be bound to the powerful country system.
At this time, the country had not yet been destroyed, and the loyal ministers and generals had not yet died. Xia Hanyu was "forced" to save them, and he would be rewarded after saving them.
When the enemy invaded the border and the army was short of food, Xia Hanyu took out potatoes, which greatly boosted the morale of the army.
There was a flood in Runan and a severe drought in Shu. Xia Hanyu brought out sweet potatoes to save the people from famine.
There was a snowstorm in Jinling and the people were in despair. Xia Hanyu took out cotton to save everyone from the cold.
Emperor: Ah Yu is worthy of being the Princess of Dingguo of Daxia...
Ministers: We swear allegiance to Her Royal Highness the Princess...
Common people: May Her Royal Highness the Princess be blessed with good health...

By the time the planners reacted, the entire Daxia had become an iron barrel, indestructible!
Powerful national system: Hiding merit and fame

Novel Keywords: The Princess Was Forced to Bind to the Powerful Country System After Rebirth (no pop-up ads), The Princess Was Forced to Bind to the Powerful Country System (txt download), The Princess Was Forced to Bind to the Powerful Country System (latest chapter reading)