Shion, a 32-year-old police inspector, is known for his intelligence and intuition in solving complex cases. Behind his stern demeanor, there are old wounds from the tragedy that took his family—a case that has never been solved. When a new investigation links his dark past to that dark past, Shion must face a dilemma: pursue the truth he has always sought or protect the people who are now his family. Shion's journey is a story of justice, betrayal, and finding the courage to face the shadows of the past.