Elite police officer Toyama Kinshiro has come to be the new chief of a police precinct. He is an eccentric but compassionate man who saves citizens who have no voice, regardless of the type and size of the cases. He believes the police should be close to the citizens and make the streets crime-free. When there is a case that interests him, he must personally go to the crime scene to see everything for himself. No one will realise that he is the police chief because of his clothes. Toyama does not see things from the viewpoint of his investigators, but picks out clues to solve the case from seemingly irrelevant, unexpected things. However, his investigations which do not fit in with the conventional wisdom of crime scenes, are not welcomed by his investigators and their antagonism only gets deeper.