You're an ambitious member of the Modern Crime Prevention Task force's Metropolitan Police Department. You work alongside your good friend Kato Haru, a short-tempered young man who hates dishonesty and bending. As promising rookies, the two of you become an unstoppable duo when it comes to cases - but all of that changes when you witness his death before your very eyes. There you were, bleeding out on a rooftop terrace. Surely, you'd die any minute. However, against all odds, you were saved.. by the scion of the millionaire Kambe family. You owed him a lot more than money.