The Sword of Kaigen: A Theonite War Story

On the Kusanagi Peninsula, home to the formidable warriors of the Kaigenese Empire, fourteen-year-old Mamoru is destined to protect his homeland with legendary fighting skills. However, the arrival of an outsider reveals troubling truths about the Empire's peaceful facade, prompting Mamoru to confront the urgency of becoming a true fighter. Meanwhile, his mother Misaki struggles with her past as a warrior while grappling with family tensions and the impending threat of invasion. As the winds of war approach, the Matsuda family's loyalty and strength will be put to the ultimate test.