Akiho Takeda is assigned to the #3 investigation team for The Tokyo Metropolitan Police Department. On her first day at work, a burglary takes place at a jewelry store in Shibuya. The case is taken by the #1 investigation team which Akiho hoped to join. Nevertheless, Akiho goes secretly to the jewelry store where the theft took place. There she sees a man with piercing eyes among the onlookers. That man is veteran detective Shuichi Hagio, who also works for the #3 investigation team. They become partners and work together.