While journeying over mountains, into valleys, through towns and farmlands, and along rugged coasts, searching for harmony, Usagi faces a unique cast of characters: a village of seaweed farmers, an innocent noodle peddler, a demon-possessed woman, a relentless clan of bat ninja, an assassins' guild, a mysterious medicine peddler, and Inazuma, a secretive female samurai. More than once Usagi finds himself in great danger -- but it's all in a day's work when you walk the thin line on the brink of life and death.