Growing old together in Changchun

Rong Zhi was switched at birth and lived in the countryside for eighteen years, her family was poor, and she dropped out of high school to work.
At eighteen, her biological parents came to her door, saying she was the daughter of the Rong Family in Beijing and came to take her back to Beijing.
Above her were uncles watching over the family inheritance, below were biological siblings.
She was warned by her parents: Learn the rules from your brothers and sisters, don't cause trouble, the Rong Family can't afford to lose face because of you.
Rong Zhi brushed aside the bangs on her forehead, smiling brightly: "Okay."
Everyone was waiting to see the joke of this ignorant and unsuccessful Third Young Master Rong, but as they watched, she became the Crown Prince who had the final say in Beijing.
Everyone: This doesn't quite match what we were told??

The Bai Family Head returned to the country, and all the noble families in Beijing were on high alert, except for that carefree member of the Rong Family.
One day at a banquet, everyone saw Mr. Bai, standing at the top of the pyramid, bend down, holding a pair of high heels in his hand, speaking helplessly: "Such a princess."
Looking again at the long-haired woman in a dark green cheongsam standing in front of him, barefoot on his shoes, "I am a princess, and it's none of your business."
This familiar face, this familiar arrogant tone...
Everyone was stunned, their eyes open wide in disbelief: Third Master Rong?!
【Front-stage female disguised as male + slight sci-fi + no logic + feel-good novel + 1v1 single couple】

Chapter 84 Training