Know my audience? With the exception of you, I have no idea whether it's boys or girls reading my manga. It's not like I can take a poll.
Or is it.......
Anyways, frozen blood's going on the shelf for some other project in the future.
Back to this manga, a jutsu that removes the oxygen from the air around an opponents head (now, see, that's what us guys come up with and admire)would be deadly, but I cannot think of a name.