saw first page of the chapter haven't even read it all yet but had to come to the comments to say that even with the barrier she said she had that broke she should be way more hurt than just scrapes all over the stuff falling down on her was as hot as lava said in the last chapter at least some sort of burn should be there.
It's a rule right up there with how you have to open your mouth every time you lift your shirt up, if those late night adverts for videos with drunk girls are any indication.
It's ridiculous water is not effective against fire. I guess it's an East Asian traditional element table, but it's still ridiculous. I bet Japanese firefighters do use water agaist fire, even if the mangaka don't believe in it.