User blog comment:EmirK/Who do you want for the main antagonist in Toaru Kagaku no Accelerator?/@comment-17714224-20131023235948/@comment-5230978-20131024004231

The first and the second options are both possible (this first chapter and maybe the first arc surely take place before vol 12, if not 8), but the third is impossible for the science side, because the first arc he deals again with AC dark side is Freshmen arc, and unlikely for the magic side, 'cause judging from NT 1-2 he doesn't seem to have dealt again with magicians after WW3.