Talk:Nullification area

In the light novels, they refer to these "nullification areas" in multiple different ways. The most common seems to be "anti-crystal field." Perhaps we should take into account these multiple different names? To be honest, I don't remember when they refered to "anti-crystal fields" as nullification areas. Could anyone care to enlighten me about this?

Also, there's the mistake. The first boss room with an anti-crystal field was the 74th floor boss room. See the page, Dungeon.