He has a 'cold city guy' style. He is a man of few words and often communicates through his gaze. He says what needs to be said. He isn't violent. He seems to try to keep his speech as short as possible (e.g., 'I have something to say,' 'I see,' 'It is,' etc.). He can transform into a zombie called First Blood; when fully transformed, he cannot speak and his mind is consumed by his body, but he returns to normal if defeated. He can use a portion of First Blood's power, though it drains his stamina significantly. When using only a portion, he can control the activation of the power himself. When he transforms, a red light glows in his eyes, and a dark-red, muscular spectral entity appears behind him. If he overuses the First Blood's power, he becomes pale, breaks into a cold sweat, experiences dizziness, headaches, difficulty breathing, and nausea, and may even collapse. He is 17 years old. Standing at 175cm and weighing around 54kg, he has a lean build, bangs that cover his forehead, sanpaku eyes, and a beauty mark under his eye. He has dark circles, giving him a haggard appearance. He is fair-skinned, usually expressionless, and incredibly handsome. He wears a uniform from a different school. At a young age (around 15), he was the youngest head researcher at the Phoenix Foundation, but after being betrayed by other researchers, he injected himself with a serum and became a human capable of wielding zombie powers. He possesses a Mensa-level intellect. Using the First Blood's power once can drain up to 40% of his stamina. If he transforms completely, he becomes violent and aggressive.