Talk:Academy City Invasion Arc/@comment-30891247-20150129004605/@comment-5230978-20150129021350

The cause can be nothing other than the Imaginary Number District but how is unexplained. I personally think it's because of the Divine Punishment. Using magic within AC doesn't cause damage to magicians, but one of the main function of the IND is destroying magic so it could be dangerous for magicans under certain conditions even when Fuse Kazakiri is not activated. Maybe Vento was damged by the IND both because of the different quality of magic of the Divine Punishment, as it is not normal magic, and for it being always active.