Å·±¦ÓéÀÖ

It’s a story about one of the emperors that had taken tons of unwilling wives and this girls sister got taken and she went to BATTLE for her.
At least I believe so. I saw it in passing. Took a screenshot. Wanted to read. And then the screenshot got absolutely lost in my phone e of screenshots of book recommendations. Please please please tell me someone knows what I’m talking about.

I'm almost positive I just read that summary here on Å·±¦ÓéÀÖ recently, but I can't remember how I came across it! It's driving me nuts!
If you post on the Å·±¦ÓéÀÖ group, "What's the name of that book???" they're really good at helping find books. They've helped me find a book four times.