Can you recommend a transmigration fantasy novel with a strong female lead?

I'll write it in detail. Please read it patiently. If you know which novel it is, please tell me. Thank you.
The female protagonist was very beautiful and dressed as a man. There were quite a number of women around him who liked him. There was a plot where the emperor of a country killed the female protagonist's brother or subordinates, and then the female protagonist destroyed the old emperor's country. The characters in the novel still remember a person surnamed Yan (Maybe, I can't remember clearly). His legs seemed to be crippled. He should be the principal or vice-principal of some school. The female lead called him Brother Yan. There was also a little girl who liked the male protagonist. She was the daughter of the old emperor whose country was destroyed. She was innocent and naive. When her country was destroyed, she might have encountered some danger and cried. The female protagonist went to save her (and she was dressed in men's clothes). In the end, she lost her temper at the female protagonist and said that it was all the female protagonist's fault. The people around her wanted to say that she must be the person that the demon loved. In the end, the female protagonist directly left the woman there and did not care about her anymore. There were also two women who were sisters. The older one was a teacher of this academy, and the younger one was a student. The older one was elegant, and the younger one was seductive. The younger one knew that the female protagonist was a woman and had a good relationship with the female protagonist. The older one fell in love with the female protagonist. There was a plot in which the female protagonist shouted for a mistress on campus, and then she met the younger one. Her name was Qing something, and in the end, she was the mistress of the younger one. Another character was a woman who planted flowers in the academy. Her husband had died and she was an expert.
I can only remember so much for the time being. You must read it patiently. Of course, if you are sure which novel it is halfway through, just tell me. If you are unsure of anything after reading all the above, you can ask me. I will try my best to think about it.
Please kiss me as soon as possible ~~
I'm not sure if the woman who planted the flowers is there. I might have remembered wrongly.
In addition, there was a mistake in one part. The old emperor's daughter fell in love with the female protagonist who disguised as a man, not the male protagonist.

Answer 1

I recommend "The Owl King's Favorite: The Defiant Seventh Miss", this fantasy romance-Oriental fantasy novel, to you. The protagonist was a female agent of the "Bat" organization in the twenty-fourth century. She traveled through another world and met a gentleman, an immortal, an Ethereal master, and a hidden Owl King. The two of them fought side by side, life and death together. This book was about strong men, strong women, one-on-one, and cute pets. I hope you like this fairy's recommendation. Muah ~😗