Introduction

The story takes place in the Shirokanese Empire, specifically on the Kusanagi Peninsula—the "Sword of Kaigen." This region is home to the legendary Matsuda family, warriors who can manipulate ice and water (the "Whispering Blade" technique).

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: A mother and wife who moved to the remote peninsula from a more modern, cosmopolitan city. She suppresses her past as a trained warrior to fit the role of a traditional Shirokanese housewife.

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