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.
But he is still only nine.
Allerdings ist der Junge
erst neun Jahre alt.
Pero apenas tiene 9 años.
Cependant, il ne faut pas oublier
qu’il n’a que 9 ans.
Ma ha solo nove anni.
Mas só tem 9 anos ainda.
Однако ему пока всего девять лет.