In the middle of the Shogunate era, Tokugawa's central government's finances became increasingly in deficit.In order to accumulate money, the greedy rulers did not hesitate to exploit the property and land of the local Daming.In order to achieve the purpose of surveillance Daming, the shogunate sent many spies known as "shadow" to the local area.The local area was in trouble, so they joined forces with other vassals to hire peerless masters known as "Shadow Hunter" to snipe this group of evil men from the central government.Muroto Tohoe (played by Yujiro Ishihara), "Nikko" Takenogen (played by Ryohei Uchida), and "Moonlight" Rishinosuke (played by Mitsuo Narita) all became unparalleled ronin because of the shogunate and Shadow. Out of hatred for the shogunate, they formed a shadow hunter trio.However, the newly discovered minerals of the Ma Kingdom were coveted by the shogunate, and the shogunate made many tricks for this, and the war between the Shadowhunter and the Shadow Group led by Shipengwei was intensified...