A loli terrorist who infiltrated a high school

This science fiction novel about robots is set in a parallel world where science continues to be called magic. “In a non-magical world” (see URL below) \'s heroine, a terrorist loli girl, is regenerated. Wearing the uniform of Shohei-zaka High School (the location of Yushima Cathedral) in the parallel world of Ochanomizu, where he infiltrated in search of an engineer to repair a broken small sage stone reactor (*nuclear fusion reactor). Because the school is based on Confucianism, the uniforms are Chinese-style. Because it wasn\'t a conventional fashion, I had a hard time getting it close to the ideal, using a lot of negative prompts.