The Most Heretical Last Boss Queen: From Villainess to Savior (Manga) Vol. 3 : 3

Having avoided a terrible fate for one of the love interests, time marches on for Pride. But now it is of the essence for one of the secret targets from the game, Prime Minister Gilbert. His actions become increasingly desperate as his beloved fiancee Marianne slowly deteriorates with a terminal illness. Pride knows exactly when Marianne's death should occur, and how far Gilbert will go to save her. Will she be in time to stop the worst?