She was born into a wealthy family - Chapter 21 - was an accurate answer

Second title: “Everyone Gets Scared When the Consort Gets Fierce”

Qin Jiu transmigrated into a switched-at-birth novel.

She became the first daughter of a marquis’ household. She was swapped out maliciously at a young age and raised in the countryside.

The fake young mistress female lead was a rebirthed girl. The pearl of the capital, and the future wife of the second prince.

In the original novel, Qin Jiu had been jealous of the female lead and kept going against her, trying in vain to frame her. Unaware of her lacking capabilities, she even tried to steal the male lead from her. Eventually, everyone turned their backs against Qin Jiu and she was killed by an arrow to the heart.

After reviewing the plot, Qin Jiu tore up the script–She doesn’t want to be this villainess cannon fodder! Then in the next moment, she jumped into the arms of Regent Gu Zezhi.

Qin Jiu, “Sob sob sob…golden thighs!”

Gu Zezhi, “I’ll let you hug them.” The regent of the dynasty had a fierce reputation of great power and heartless killings. Many people hated him, feared him, and wanted him dead. Then, one day, someone saw the infamously fierce regent holding a little girl in his arms with a pampering expression. Gu Zezhi kissed her hair and spoke in a gentle voice. “You can get rid of anyone you want. I’m here.”

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.

MC (female protagonist) dies in a plane crash and wakes up in the body of a beautiful but corrupt and lascivious prime minister in ancient times, Zhang Qinglian. As circumstances decree, he (she) cannot reveal that the original owner’s soul is gone else calamity might occur. So he (she) decides to walk a righteous path, determined to help the lovely but simple little emperor rule the country. Not backing down after facing torture, not losing courage, destroying rebellions and facing off with scheming princes.