Kiss of the blade

Alice grew up with the idea that she should be guarded by this world, to protect him at all costs from a second invasion. Together with the same as she. Demonesses. The descendants of the demons who made the first breakthrough ...
Their detachment was called live blades. They were brought up like a living weapon: soulless, silent, dutifully fulfilling orders. But what if the "blade" suddenly finds the opportunity to experience emotions, feel? It can be hatred or thirst for revenge. Or maybe sincere friendship and first love ...
Only their environment depends on what girls will become. And what choice they will make when demons will return to the world, eager to return what they had stolen