Following its decisive victory at the Battle of Sekigahara， all that stood in the way of the Tokugawa Clan and total domination of Japan was the Toyotomi Clan. Hell-bent on seeing the Toyotomi faction extinguished， Tokugawa devised what would be the final and decisive confrontation - the “Summer Siege of Osaka.” With the advantage of sheer numbers on Tokugawa’s side， the defeat of Toyotomi seemed inevitable…until a mastermind general by the name of Sanada Yukimura and his small force rose up to thwart Tokugawa’s designs. The final battle between the two would represent the final page in a significant chapter in Japan’s history…

The first commander of the famed Shinsengumi samurai police force， Serizawa Kamo has seemingly gone mad in pursuing his own agenda during the final days of the shogunate era. When not trading blows with the likes of Sakamoto Ryoma， Nakaoka Shintaro and other loyal servants of the state， Serizawa indulges himself in the earthly pleasures of， women， sake， and money. Forced to plot an assassination against him are Kondo Isamu， Hijikata Toshizo and Okita Soji - members of the same Shinsengumi unit. Enter the world of these legendary heroes as they each struggle to come to terms with the tumultuous period of transition between the long-standing rule of the Edo shogunate and the new Meiji era.