The story is about two clans, the Shū clan and the Shizuma clan always were rivals because they always hated The Shizuma clan were shinobi from Kirigakure, whose the members have shark-like features such as sharp pointed teeth and facial features that resemble gills . The Shū clan murder the boss to take the parchment to manipulate the world. Hōshi became a heiress in her 20th and promised to avenge her clan para recovery the parchment.