Anime Crossover: The Compatibility of Science and Magic

[Everyone's darling + magical golden finger + Detective Conan + chaotic childhood memories] Camellia, also known as Matsuda Tsubaki; A distinguished Hogwarts graduate, a key fighter against the Death Eaters, recipient of the Order of Merlin, First Class, and a once-in-a-century genius beauty... Okay, the last one is self-proclaimed; Despite being so outstanding, all she wants after the war is to live an ordinary, peaceful life; But What's the deal with that elementary school kid who's off in every way and constantly surrounded by murder cases? Why does that guy, who flies around all the time and calls himself the Magician Under the Moonlight, have to hide stolen goods in her house?! And those three! Those undercover agents who come home injured every day: if you're going to die, can you do it somewhere else instead of in her shop?! And... Dear big brother, are you and your flamboyant childhood friend both going for the tragic, doomed-first-love role?! And finally, whoever you are, please put down her pet “long-haired silver-shaded cat”! The “long-haired silver-shaded cat”: Hmph, a bunch of mice. As the saying goes: You either erupt in silence or perish in it; Faced with all these people who refuse to let her enjoy a peaceful life, she has no choice but to raise her wand and get rid of the source of all her problems. “You're disturbing my peaceful life, so go meet Merlin... no, your God!” Reader's Guide: 1. There is a golden finger, so the protagonist is inevitably a bit overpowered; 2. The police academy squad gets saved; 3. The writing leans toward everyday life. Any out-of-character moments are on me, so please don't flame me if it's not your thing. Thanks! 4. [Warning] Gin is written as a lovestruck, devoted character (the good guys won't discover his identity); 5. There may be quite a few one-sided crushes. If that bothers you, please don't read.