Valentin is a ruthless man who adheres to the principle of "who is stronger is right" in relation to the world, constantly using the metaphor of "being the first to take a napkin" to indicate his strengthening of power. He constantly wears long blond hair curling at the ends in several thick, well-defined rings, Valentin also demonstrates a generally dignified and restrained attitude. He is a polite person, among others using the formal and neutral pronoun "Watashi".