User blog comment:B214/Question & Answers 5/@comment-26131853-20151025125746/@comment-24098614-20151025221642

I wonder why are you bringing Skyrim into this discussion because Thu'um is related to the shout of the Dragonborn and Issei has a Dragon type Gear but it makes no sense but if he was in that world it would be possible because you need the soul of a Dragon inside of you to make it happen.