Gimme That Pacifier!

Briefly about Gimme That Pacifier! manga:

Hela Sylopia, betrayed and executed by her pupil, is reborn as an infant princess of a rivaling kingdom. She is raised in isolation by the duke’s servants, who do not care for her. But when she discovers that having her pacifier in her mouth can expand her mind, Hela uses that to her advantage to survive the plotting of her family and get revenge on the people who have wronged her. Will Hela succeed in achieving her goal? Or will she realize that the price of success is too high?