I Was Possessed By An Unknown Manga - Chapter 236: Haunted House

That year, she made a run for it while pregnant. He was a powerful figure in the Malacca Strait, commanding respect in both legal and illegal circles. He allowed no one to cross him. So, at the engagement party when she was 25, a stranger in black claimed that the bride had taken his virginity and insisted that she take responsibility and return his... child.“Do you also want to marry me?” she asked him. Although the wording was wrong, they were both getting married, so he agreed to “marry” her. Having a child and taking the wife's surname seemed like no big deal to the big boss. Surprisingly, he decided to retire and become a stay-at-home dad, shocking his brothers!

Jiang Pengji got something called the Court Intrigue Stream System.
System: “Your goal is to become the most prestigious woman in the kingdom (the Queen)!”
Jiang Pengji: “Okay, System. No problem!”
Years later, she met the target by becoming the most prestigious woman (the Empress).
Jiang Pengji: “Well done, no?”

- Description from Novelupdates

She, Xue Fanxin, a famous medical genius in the 21st century, had transmigrated into the body of the dumb daughter of the Grand Duke.