Mishima Sachiko is the older sister of Mishima Shinji and the daughter on the only dojo master her town. Her father and fellow students have been fighting off the Band of the Fang however when word that Daigo was coming to the village his henchman Goro finally decided to put a stop to it. Returning home from a martial arts competition Sachiko came across her brother who had escaped and was hiding in the woods. Sachiko was able to fight of Gojo’s men before grabbing Shinji and escaping. She is discovered by Ranma Saotome and Kaori Ichibana after succumbing to her injuries. The two patched her up before taking her and Shinji back to the village.