The Sword of Kaigen: A Theonite War Story

At the edge of the Kaigenese Empire, on a mountainside, reside the most powerful warriors in the world. These superhumans have the ability to manipulate the sea and wield blades of ice. For centuries, the fighters of the Kusanagi Peninsula have protected the Empire from its enemies, earning their land the nickname "The Sword of Kaigen".

Mamoru, a 14-year-old born into the legendary Matsuda family of Kusanagi, has always understood his destiny: to master his family's martial arts and defend his homeland. However, when an outsider arrives and exposes the truth behind Kaigen's supposed era of peace, Mamoru realizes he must quickly become the warrior he was meant to be. Furthermore, he discovers that the Empire he is sworn to protect may be built on lies.

Misaki, who believed she had left her past as a fighter behind upon marrying into the Matsuda family, finds herself struggling to suppress her inner warrior. As her son begins to inquire about the world beyond their borders and the threat of invasion grows nearer, Misaki's icy husband and domestic duties push her towards embracing her combat skills once more.

As the winds of war approach the peninsula, will the Matsuda family possess the strength to defend their empire? Or will internal conflicts tear them apart before their true enemies even arrive?

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