Thread:Night Vision/@comment-4762852-20160720204024

Sorry to bother you, but I kind of have a question. So, I'm watching the anime at the moment (presently on the second episode), and am at the scene where Noel is put under a trance by this "Seithr" substance. I looked at the article about it, but that doesn't seem to be mentioned.

Could you explain how that works? 