Hirano Kitagawa is a 42 years old detective, working in the Japanese police. He has two kids and a wife. Known for his many achievements in the work, he is respected by many people. Extremely devoted to what he does, he always strives for perfection. When he is ousted away from the case about the disappearance of the participants, he becomes nervous. He doesn't want to leave the investigation that intrigued him. He wants to prove the truth, putting himself and his family in the danger.