Akira Hirano is a mysterious ronin who, after losing everything, seeks to find a new purpose to her blade. However, 'Aki' carries a curse with every heartbeat. Some would call her a 'demon' or 'yokai', but the Samurai that pledged to protect the country of Shinkushima knows what she is: they call her kind 'Higanbana'. In her quest to find a path forward, Aki makes the decision to help a nameless town in need, unaware of what her selfless act would bring...