The Magical Revolution of the Reincarnated Princess and the Genius Young Lady, Vol. 4 (Manga) - Piero Karasu

In slaying a dragon, Princess Anis received its curse--the transplantation of the dragon's knowledge into her own mind. Now, in order to put the curse to use for a certain goal, Anis and the others must set off to find Anis's old friend, a woman known for her cruel and inhumane ways...the abominable Marquise Tilty Claret.