User blog comment:Famotill/Jiyuu Na Oukoku/@comment-1775303-20100509011541

Something like that, but not for every chapter. In manga, there's something called arcs. Each arc has a different major plotline. Example: In One Piece, there's the Arabasta arc, where Luffy tried to free a country of tyranny, and the CP9 arc, where Luffy tried to save one of his friends.