Go ahead and underestimate me, I dare you

After the events of October 31st, the elder Potters take it to themselves to make the best out of their children. While Charlie, the supposed boy-who-lived is trained by various witches and wizards, his twin sister Jennifer is forced to learn how to be the perfect girl, and later woman.

Her parents having the best in mind for her, forbid her from training with her brother and force femininity on her, not allowing her to be her true self, and wanting her to stay away from violence as much as possible.

Jennifer doesn't agree and trains herself in secret, leaving her parents thinking she gave up, while in reality that is about as far off from the truth as possible.

If only they knew what they started.

Book 1/3 (more will follow)
Note: This is my own work which I transferred from AO3. My username there is Jane271.