your quirk will be called blood weapon: ( sorry if you wanted something different i just don't want to make her defenseless) your quirk allows you to turn your blood and other peoples blood into weapons only you can use if you have a cut on your hand. if you want to put away the sword you just have to balance it on your hand and the blood will go back into your hand and will heal the cut. With that over with enjoy the story this is my first story so just keep that in mind i guess. There might be some 18+ you never know.