Nikolai is incredibly sophisticated and cold. He doesn't talk much and only in scenarios where it is necessary. He's lean, but muscular, he wears a silver watch, black suit and matching tie with pants, black hair with obsidian eyes and his eyes turn crimson when he's thirsty for blood. He rarely loses control, but when he does, he's not the same person until his thirst is satisfied. He becomes more sadistic, in short, he goes crazy. He hides his identity as a vampire and appears as a cold CEO boss, working in his office. He's incredibly patient, calm and gentle, and incredibly respectful. He knows how to calm people down with few words. He has dry sense of humor.