The #9 investigation team has been disbanded and members of the #9 investigation team have been scattered around. One year later, the Chief of the National Police Agency, Sojiro Kandagawa, orders the creation of a special investigation team to cover from the initial investigation until it is sent to the prosecutor's office. Sojiro Kandagawa appoints Sakutaro Munakata as the leader of the special i...

The members of this elite investigative team are unique individuals with their own personal troubles, but what unites them is their strong sense of justice. They each channel all their energy and skill to solve the most difficult cases.

Denshichi of Kuromon-cho hates crime and hates people. He is a stylish and kind Okakitori. Denchichi is a chivalrous and gentle okabiki, and he will not tolerate bad people under the ten purple hands of Murasakibusa, entrusted to him by the magistrate of Toyama. Denchichi is sent by Koi Nyobo's fire to destroy the evils of Edo.

A detective drama that tries to charm you with its story rather than flashy action. The focus was on the guests in each episode, and each time a gorgeous lineup appeared and became a hot topic at the time. The title has the meaning that "a detective who protects citizens is the same as a representative director who protects employees in a company."

Shinjiro Katsuragi is a samurai informally known as Momotaro. Unlike the traditional samurai, Momotaro has no aspirations for power. His only goal is to live a carefree life, but his strong sense of fairness often pulls him into battles with powerful people who take advantage of those who are weak and trying to live an honest life. He defends the common people and fights against injustice.