Isaac and the Black Sword Knights are responsible for training the Maihama army. While he's in Maihama Isaac gets to know the new crown prince of Maihama, a young boy named Iselus.  Iselus respect looks up to Isaac and respects him.
At a party for the crown prince's birthday, assassin's make an attempt on his life.
They want the heir to have Cowen blood.
Es wird erwartet,
dass der Erbe Cowen-Blut hat.
Quieren que el heredero tenga sangre Corwen.
Il préférerait que mon successeur
soit de la lignée des Corwen.
Vogliono un erede con sangue Cowen.
Eles querem um herdeiro
 com sangue Cowen.
В жилах наследника должна
течь кровь семьи Ковен.