Who on Earth Doesn't Want Me to Lie Down?

Yu Susu, a social animal, traveled through time and space and became the only daughter of Master Yu, a private school teacher in Jinxi Town. Women were not allowed to take the imperial examination, so Yu Susu made her own way, learned medical skills from her neighbor Dr. Li, and traveled among wealthy families. But she is often remembered for her beauty. After weighing the situation, Yu Susu recommended herself to the eldest lady of the eldest daughter of the wealthy family of Anping, and was willing to be the fiancée of the eldest son whose life or death was uncertain. It was a time of troubled times, and Wang Chong, the eldest son of the Wang family, followed the King of Wu in revolt and was highly valued. Later, King Wu was assassinated and Wang Chong lost news. The Wang family members forced the eldest lady to adopt an heir, and the eldest lady hurriedly arranged a marriage for her son, agreeing that Yu Susu would pass away three years later, regardless of life or death. Yu Susu was practicing medicine to make money while waiting to become a wealthy widow. Unexpectedly, Wang Chong survived the catastrophe and came back as the Nine-Five Supreme Being. In order to unite the forces of all parties, he had already taken wives and concubines. Fortunately, the girl from the Yu family hasn't come through yet, so she can just back out. Wang Chong came to the door in person and took back the ancestral jade pendant. Yu Susu was annulled and got a large sum of money in vain, preparing to give birth and find a husband. But she received an imperial edict from the capital: the new emperor announced her entry into the palace. Yu Susu, a small town girl with no prominent family background, entered the palace reluctantly. Considering her own background, she decided to be a salty fish and protect herself wisely. But I always feel like someone doesn't want her to lie flat, what should I do? Yu Susu decided to find this person out!