10-nenkan Karada wo Nottorare Akujo ni natte Ita Watashi ni, Nidoto Kao wo Miseru na to Konyaku Haki shite Kita Kishi-sama ga Kyou mo Sugatte kuru is a Manga/Manhwa/Manhua in (English/Raw) language, Shoujo series, english chapters have been translated and you can read them here. You are reading 10-nenkan Karada wo Nottorare Akujo ni natte Ita Watashi ni, Nidoto Kao wo Miseru na to Konyaku Haki shite Kita Kishi-sama ga Kyou mo Sugatte kuru chapters on ManhwaZ, fastest updating comic site. The Summary is
"I'm a wicked woman?!" Sadie, the former count's daughter, unknowingly had made a bad reputation to herself as a wicked woman during the time when her original body was in the possession of someone else for the past 10 years. Suddenly, she returned to her original body in the middle of the abandonment of her engagement with the knight captain Rufus. She told them that it wasn't her and her body was just being stolen by someone, but they wouldn't buy it. Sadie, who has given up telling them, begins to search for the criminal who robbed her body. On the other hand, Rufus is confused by the sudden changes in Sadie's personality. This is a love fantasy story about two people who keep crossing paths with each other and gradually become closer.