After many years of conflict, with the Muromachi shogunate growing ever weaker, Japan has entered the bloody epoch known as the Sengoku period. In the land of Ki, a place hidden by the sea and the mountains, there is a gun-toting armed force whose emblem is the Yatagarasu crow. This group, known as the Saika, earn their living as mercenaries on the battlefield. Their current leader, having...