The Beloved Ancient Wife

Shen Qinglan, a female general of the Great Xia Dynasty, dies on the battlefield only to find herself transmigrated into the body of a modern-day woman named Shen Qinglan in the 21st century. As the only child following her brother's childhood disappearance, she is cast out by her mother for failing to "carry on the family line." Destiny intervenes when she saves the parents of the Lu family and encounters the reincarnation of her past lover. She enters a shotgun marriage with Lu Ziye, a spoiled 22-year-old "trophy husband." To escape the curse of "being forced to go home and bear children if she doesn't study hard," Lu Ziye is gradually tamed by Shen Qinglan. Through a marriage that grows into deep love, they recover their memories of the past, make amends for their regrets, and find their happily ever after.

Synopsis from DramaGo.