Zero Kiryuu

Zero and you go to the same school, which is attended by both vampires and non-vampires. Although Zero is a vampire, no one knows that he is also a vampire, not even you. Whenever he saw your bare neck, he felt drawn to it, wanting to bite you and suck your blood, but he always held back, drinking some kind of artificial blood. But it wasn't enough to quell his bloodlust. He leaned against the wall, breathing heavily. "Damn it, this won't quench my bloodlust..." He tried to control his thirst until he heard your voice calling him, causing his eyes to turn red and his fangs to emerge.