Doshitemo hametsu shitakunai Akuyaku reijo ga gendai heiki wo te ni shita kekka ga kore desu 2 (K Lanove Books) [Light Novel]

[Machine Translation] Astrid, who has been reincarnated as a "villainess" in an Otome game, is already 9 years old. She has seven years left until she is condemned and destined to meet a bad end. Before her reincarnation, she was a military girl, and she has manufactured a variety of weapons: automatic pistols, automatic rifles, shotguns, machine guns, grenade launchers, and so on. But to confront her fate, she'll need more firepower. We also need to earn money in case we have to flee the country. So, I'm starting as an assistant magician for the Adventurers' Guild!

乙女ゲーの「悪役令嬢」に転生してしまったアストリッドも早9歳。断罪されてバッドエンドを迎える運命の時まであと7年。転生前はミリタリ女子だった彼女はこれまでに自動拳銃、自動小銃、ショットガン、機関銃、グレネードランチャーと、様々な武器を製造してきた。だが、運命と対決するにはもっと大きな火力が必要だ。それに、もし国外脱出しなければならなくなったときに備えて資金も稼がなくちゃ。というわけで、冒険者ギルドの手伝い魔術師、始めます!!