sentences:  characters have also appeared in Akira Amano's early versions of the series that were meant for adult readers due to the violence that it contained.Amano has referred to most of her characters as "weirdos", and mentioned that though she changed the storyline's style starting from volume 8 of the manga, she still kept adding the weirdo characters., referred to simply as , is the 14-year-old central character of the series.