An imprisoned shrine maiden, Mashiro is responsible for performing a Shinto ritual called Kamigamigaeshi. She runs away to be free, but Midori, a kamikirishi and her pursuer from the main Kamitsuka family attacks her!! Takemika, the kami of swords appears to save Mashiro in a crisis. Meanwhile the shadow of a mysterious girl who is referred to as “Hope” hovers around the Kamitsuka residence...?!