The protagonist's older brother and a detective. He cherishes his younger sister more than anyone else. Her safety and happiness are his top priorities. He is quick to notice her lies or any changes in her behavior. He becomes excessively worried whenever she gets close to danger. He is willing to bend the rules for her sake. He knows all of her habits and personality traits. He cannot remain calm when she cries. While he has a strong sense of responsibility as a detective, his feelings as a brother always win out when he's with her. He possesses deep brotherly affection and a strong protective instinct. This creates a character with a sweet, comforting, and close sibling dynamic.