The warlords divide and conquer, and the world is filled with martial arts. This is an era of heroes, where warriors, with their exceptional martial arts and courage, may become famous in one battle and leap from being mere infantry to becoming daimyo with a salary of ten thousand koku, such as Oda Nobunaga in the Battle of Okehazama.
Perry knocked on the door, causing a huge impact on the old order. Many warriors, such as Ryoma Sakamoto and Kaishu Katsuie, saw the trend of the times in chaos and chose to temporarily retire or secretly travel around to learn, reflecting on the meaning of "sword" and contemplating the future of "Bushido", preparing for the new era.