This is Umi's boyfriend. Isn't he cute? His name's Xell, and he is what people call a 'Mazoku' or a demon. People sometimes mistake him for a vampire because of the fangs, but he really doesn't mind. :D Um as you can see, he cries black tears when he's upset but he occasionally cries tears of blood. Of course, the only time he cries blood tears is when something traumatic triggers his transformation into his evil raging demon form (and if that's the case you should quietly back away or else he will kick your butt and you will most likely die).