Seishin Yagami (清心夜神, Yagami Seishin) also referred to as Lord Seishin (主の清心, Aruji no Seishin) is the Daimyō of the Land of Iron and also the commanding general of the entire nation’s military forces, making him the most influential figure of the country. Before becoming the undisputed ruler of the Land of Iron, Seishin led a rebellion against the former general of the country, Mifune, killing him and taking his place as leader.