True "Will-o'-the-Wisp"

The sword of Kisaragi, a teacher of ninja techniques living in Imari Village. This burning blade has experienced much hardship alongside her, and by using memories of those events, has awoken the true strength sleeping within. The flames that flow out of the wounds of enemies cut with this blade eventually envelop them, and burn eternally, much like the passion in Kisaragi's heart. She never spoke of the memories burned into the blade till the day she died. However, the sword understood her feelings as she gazed upon it alone, as if recalling a precious memory.