In the year 1615 in Japan, a new Shogun seizes power over Japan and enforces nationwide peace. In his battle against conspiracy and rebellion, he recruits five specialists in assassination, sabotage and espionage. The team must fight against the mysterious Kage-sama, who plans to overthrow the Shogun. They infiltrate castles, gather information through espionage, fight rebellions and ruthlessly eliminate Kage-sama’s allies. The group is comprised of very different personalities; working together as a team seems impossible at first. Yet over the course of many missions, trust is won and friendships are made. The characters develop their own dynamic and each member will face some kind of personal drama.