Detective Shimura Takafumi works from the obsessive belief that criminals should be punished. His outrageous behavior has him relegated to a special investigation team working on unsolved cases. He must team up with Kiriko, known as Invisible. As a crime coordinator, she brokers transactions for organized criminals. She is willing to provide information on unsolved cases and violent criminals. Her only condition is that she wants to team up with Shimura Takafumi.