Akuyaku Reijou wa Shaberimasen. Kakusei Shita Tensai Shoujo to Ushinawareta Hazu no Koma

Liliana, a duchess's daughter and a candidate for the crown prince's fiancée, discovers that she's been reborn as the villainess in an otome game she played in her past life. She's constantly targeted by her father's political rivals and assassins from other countries. To make matters worse, she's unable to speak due to an illness. Unable to call for help even when attacked, and unable to chant magic spells, it seemed her only fate was destruction—but…

If I can't speak, then shouldn’t I just master no-chant magic? Oh, I did it.

Thus, drawing those around her into the fray, she thwarts a monster stampede and destroys a human trafficking organization… aiming not to be swept up in the story, Liliana becomes unrivaled!! This is the opening of a fantasy story of otherworldly reincarnation and secret battles, where the strongest heroine destroys fate (the scenario) with her genius (cheat-like) magic and intellect!