The Villainess Speaks Not

Ducal daughter Liliana contracted a contagious disease at the age of six and nearly died. When she awoke, she had lost her voice but regained her memories of her past life. From these memories, she realizes that she has been reincarnated as the villainess in an otome game and that she is in a desperate situation, with her life being threatened by her father's political enemies. In order to avoid ruin, Liliana learns incantation-free magic. With her genius magic and intellect, she overcomes the crisis of being unable to speak—?! Source: MU