Kareinaru Akujo ni Naritai wa!: Aisare Tensei Shoujo wa, Tanoshii Nidome no Jinsei o Okurimasu

Mythia, a girl reincarnated as a noble, dreams of living a free life as a gorgeous, elegant villainess. However, in a world where magical ability reigns supreme, her lack of aptitude for advanced magic relegates her to being the lord of a faraway frontier land. Yet with a domain to do whatever she pleases and subjects who grow fond of her, this underhanded banishment might be the key to fulfilling her dreams! Now this little girl will fight up the ladder to become the ultimate villainess!

Source: Manga UP! Global

https://www.cmoa.jp/title/326858/