Yu

A young girl who meets Rei on his journey. She originally disguises herself as a boy and pretends to be a master of Nanto Seiken donning a girl disguise on top of that to lure bandits in and steal their supplies something Rei later adopts at a much more subliminal level at his introduction in Hokuto no Ken. After Rei saves her from bandits with his Nanto Suich Ken she agrees to take him to Asgarr in his search for Airi. When she was young Yuus mother died in the desert during their journey to Asgarzul and she was adopted by Eva. She often distanced herself from her sisters ways however only growing to adopt them after Evas death.