Mangadom

By all appearances, Conan Edogawa should be the greatest detective in all of mangadom.

They boast, perhaps, the biggest eyes in all of mangadom. Since the eyes take up so much room on the chibi face, the head needs to be stretched and, therefore, usually ends up being oval-shaped to accommodate the oval-shaped eyes.

Put simply, nosebleed in mangadom is a comical euphemism for an erection.