Villainess: Reloaded! Blowing Away Bad Ends with Modern Weapons Volume 3

As the heroine’s entrance draws ever closer, eleven-year-old villainess Astrid Sophie von Oldenburg is determined to defy her fate, no matter the cost. Now, the overwhelming power she craves may be within her grasp: after slaying a dragon, Astrid has drawn the attention of a secretive sect of witches willing to share their knowledge. Their lost magic—a collection of forbidden arts and blood magic spells—could be exactly what she needs to improve her guns and boost her war potential; it could even be enough to tip the balance in her favor should her family rise up against the empire. But since all good witches need a familiar, Astrid has her eyes on a divine beast powerful enough to fight by her side. She’ll have to tame it first, though. And when the dust settles, maybe she’ll finally be able to make that love potion and bring a spark to her ailing love life. After all, be it through love or war, Astrid’s determined to annihilate her fate by any means necessary!

[From J-Novel Club]