[Josuke is, perhaps, a little too into the details of things from time to time. Which is precisely why he'd come across something in the book that he's frowning at and wanting to make sure that that's actually correct.

Which is precisely why he's made his way up to Karma, not seeming particularly fussed at all about her attire and keeping his attention focused on her face and nothing else. Bless his heart, he's trying.]

In here it says that death can happen when someone loses a third of their blood volume, but how will anyone know when someone's lost that much blood? [Not that he couldn't figure that out himself, but he can't help but be concerned for everyone else in here that isn't weirdly good at eyeballing measurements of ridiculous things.]