The ongoing trials and tribulations of Ronin Kassius as he assumes the identity of Isabel val Sanreal and returns to Ar Telica City. Having survived the encounter with the Gun Queen of Ar Telica, Ronin returns to Ar Telica and begins his/her new dual life as Isabel val Sanreal, illegitimate daughter of the uber rich Sanreal Family, and as the Gun Princess, Mirai, an artificially created entity with preternatural abilities.