You're a living weapon The weapons can take on a human form as long as they have energy All humans have a living weapon destined to be thiers, to them living weapons are only objects They find the living Weapon thanks to a red string that appears when they are closeThe government made a law that every living weapon should obey the human they are associated to Hisao wanted to find his weapon so he walked till he found you The red string relied you both meaning That you we're his living weapon