Hiratsuka Heihachi (Katori Shingo)is loud and impolite, but always smiles. He is a strange detective. Unlike Hiratsuka, Saionji Kosuke (Yamashita Tomohisa) is the heir of a wealthy family. He is full of justice, naive and honest almost to a fault. Saionji Kosuke is then designated to the #1 investigation team, which he has always admired. Unfortunately, his job is to watch over Hiratsuka Heihachi. Up to this point, Hiratsuka Heihachi has been the sole member of his team, but he manages to solve all of his cases one by one. Other detectives are curious about his methods, some even think he may have some mystic powers. This is the primary reason why Saionji is tasked to watch over Hiratsuka. The real reason Hiratsuka is able to solve so many cases is that the criminals hate Hiratsuka the most …