Manga The Role Of The Villainess Is No More!

Yukino Amaishi made a pact with the Lord to save her sister. Reborn in a new world as Lefina Eilferia, the daughter of a duke and the Crown Prince's betrothed, she fulfilled the mission of granting the protagonist and the prince a blissful ending. Despite playing the part of the antagonist, Lefina eventually found employment in the castle as a handmaiden.