Sabiiro no Armor: Reimei
The Warring States period of Hinomoto is a turbulent one. In a deep forest of Kinokuni, an unexplored region of mountains and seas, a group called Saikashu use Yatagarasu as their flag symbol and guns as their weapons. Magoichi, who arrived from abroad, is the head of Saikashu. On the other hand, Saburo senses the signs of aggression from European powers and works to protect Hinomoto.
The fate of the two, who would have never met otherwise, is changed by the invaders from a foreign land. They must fight together to protect their home.