A Minami plot was behind the massive wyvern attack on Saphir.  To stop the plot, Nyanta attacks the train carrying the Minami general alone.  But he's faced with the sorcerer he defeated long ago, the man who trapped Serara in the far north, Londark.
Shiro's teachings are that boy's blade.
Las enseñanzas de Shiro-sama son su espada.
Gli insegnamenti di Shiro 
sono la lama di quel ragazzo.
Os ensinamentos do 
Shiro-san são essa lâmina.