Kakuriyo no Senkouka

A long way away from towns, there is a ninja tribe's village deep in a forest. They say that ninjas in the village own monstrous power so they have been feared by ordinary people for a long time. In fear of their potential threat, the nation finally decides to wipe them out. This leads to a tragic event when the heads of significant families in the tribe hold a conference over the nation's decision, as almost all of ninjas with ogre power are slain. Though the method was necessary for the tribe to survive, it left a great gulf between the authority and surviving ninjas with ogre power. However, the gulf will be bridged by a girl...