Returning from school, third-grader Ryunosuke is introduced to a young girl. His father tells him that she will be his little sister starting that day. Her name is Koharu. She is blind and her arms and legs are prosthetics. She holds within her a power beyond human understanding... A bizarre and fantastic Saiyuki story for a new generation!

Wandering traveller Kurotsuki Yukiji goes from town to town enjoying the women, food, and culture each has to offer. He is the master of the Kurotsuki style martial art where instead of using brute force, it uses the aiki form where you use the opponent’s strength and manipulate their force against them. It focuses on settling the conflict without hurting both sides and harnessing the “bladeless soul.” Yukiji is travelling to perfect this style and trouble usually finds him despite his peace-loving nature.