help

I know I've read it but I forgot the manhwa where the girl basically goes back in time and I think she was a sword or something and she goes to the mail lead or something. And basically the title was like she ran away after getting him to become the emperor but she didn't run away until like hundreds of chapters later. I'm pretty sure it's finished but I don't remember. Anyways I just wanted to read it cuz like I didn't finish it because I really didn't like the male lead but now I think I can handle it

I forgot to mention she like mentored him for like a bit too. It was like really popular like a year or two ago. I don't remember but like I really liked it cuz I thought oh it's going to be great but it wasn't the best. Anyways and tell me if you find the title I will read it again