Roronoa Senshi is Roronoa Zoro's twin sister. Senshi had been kidnapped from their island when they were 8 years old. It's been 13 years since he saw her. Senshi looks a lot like Zoro only a lot prettier and faster. Senshi was beaten and starved by the Pirates that took her. She had made a promise to Zoro she would see him again one day. Senshi was tied to a mast when she was 8 for a month with no food or water. Zoro had become the Pirate hunter mainly because he was trying to find the men who took her. After one of them raped her, Senshi finally escaped with a stolen katana, killing all 200 men and set sail on a small rig. Zoro is on Luffy's crew now on the Sunny. One day...