(The female lead isn't a saint or a villain. She's just someone with both strengths and flaws. No CP + building wealth + ensemble cast + goofy comedy + everyone has a one-sided crush + feel-good wish fulfillment + hammy father and daughter + medicine + food)
Battlefield doctor Ji Shi'an transmigrates to a fictional dynasty, and from the start she's a wandering beggar girl!
The good news is that there's no catty competition with other women, no scumbag men, no awful relatives. The only one by her side is her biological father, who may be unreliable but genuinely cares for her.
But her father warns her that enemies are hunting them!
To evade an assassination plot, Ji Shi'an and her father must disguise themselves as a man and a woman, respectively.
But changing their gender doesn't mean losing their skills.
With her remarkable healing skills, Ji Shi'an becomes a young physician famed far and wide.
Young heirs from great families fall for her, noble young ladies are smitten with her, and everyone who meets her can only give her a thumbs-up.
But who could have guessed that, just as life was getting better and better, Ji Shi'an's father would go to the imperial capital and get forcibly taken as a wife by the most notorious wastrel duke in the land?
To rescue him, Ji Shi'an has no choice but to head to the capital.
There, the powerful officials of the entire court burst into tears at the sight of her, each crying, "No wonder you look like an old friend. You're the child of someone we once knew!"
At this point, her unreliable father tells her that the current emperor, the chancellor, and all the other powerful figures were once suitors of her late mother.
And those so-called enemies weren't trying to kill them at all. They just wanted to marry her themselves and become Ji Shi'an's stepmother.