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.
He knows his own capabilities.
Er wird seine Grenzen kennen.
Conoce sus propias capacidades.
Il connaît ses propres limites.
È conscio delle sue capacità.
Ele conhece bem os limites.
Он знает, на что способен.