I'm the Villainess, So I'm Taming the Final Boss, Vol. 3 manga

Aileen has fought tooth and nail to keep avoid her bad ending, and it allcomes to a
head when the newly awakened maiden of the sacred sword, LadyLilia, and Prince
Cedric come to confront the Demon King. With so manychanged to the narrative,
there''s no telling how their stories will end!