Scarlet Jacobs, better known by her pseudonym Shinobu (シノブ), is an 18-year-old assassin, the youngest confirmed ranked member of the United Assassins Association. She is ranked eighth in the UAA. She goes to great lengths to hide her profession as an assassin from her fellow classmates, going so far as to kill a small group of students who overheard Travis Touchdown challenging her to a ranking battle. Shinobu specializes in using her katana, even throwing Travis off guard by using her signature move, Sonic Sword. After she is defeated, her right arm cut off by Travis' blade, Travis chooses to spare her life despite her requests to him to kill her and challenges her to kill him in the future. (more...)