The Armed Sorcerer from the Armed Detective Agency

As an outside contractor for the Armed Detective Agency, Oda Kaine enjoyed a carefree school life, secure in the knowledge that she had already landed a stable, lifelong job before graduating. Until, on her birthday, she discovered that the wardrobe in her home led to another world. The people in that world were pretty NICE. Take the boy with the strange bangs and dumpling-shaped hair, who was gentle and caring toward the suspicious girl who had suddenly appeared in his wardrobe. But there were plenty of strange things, too, like the hideous Cursed Spirits everywhere. They were such an eyesore that blasting them to pieces with guns and cannons was surprisingly therapeutic. Now able to travel freely between the two worlds, Kaine would occasionally sneak off to explore the other one. Exorcising Cursed Spirits, saving humanity. Shirt, short skirt, and combat boots; tie, holster, and double-breasted trench coat with silver buttons... This polished girl, with her Armed Detective Agency-style classical aesthetic, was often met with worry and skepticism by the very people she was about to save. Until she pulled the trigger. Overwhelming firepower swallowed everything. The girl with a mysterious preference for heavy weapons had finally found... the perfect place to unleash her supernatural ability to its fullest. . When she and her good friend Geto received an invitation from a strange religious school, Kaine turned it down. After all, she kept her everyday life and occasional entertainment strictly separate. But for some reason, a group of sorcerers from the Zenin family came looking for her. First they told Kaine that what she possessed was not an [Ability], but one of the Zenin family's inherited techniques, the [Construction Technique]. Then, they arrogantly ordered her to acknowledge her roots, attend Kyoto Jujutsu High, and serve their heir. Oda Kaine smiled and leveled the Zenin family's main estate with relentless, overwhelming firepower, until the humbled Zenin sorcerers came kneeling to deliver her bloodline test results... Kaine: ??? The girl turned around and went back to her own world, grabbing a certain Armed Detective Agency employee who was slacking off. "Teacher Dazai, lend me your brain." . The girl, not long afterward: Thanks for asking. Tokyo Jujutsu High is great. My classmates are fun, especially that white-haired high school boy. He gets carried away when we play, and I like that. What? The Zenin family? They're fun to mess with... and quick to kneel, too. After all, truth is only found within the range of a cannon. So I am the truth. The pairing is set: Gojo Satoru as a high schooler. Theme: The place where the people you love are is home.