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.
Yes.
Ja! Ich habe Freunde unter
den Abenteurern gefunden,
Sí.
Oui !
Tout comme vous, grande sœur,
Sì.
Sim.
Хорошо! У меня тоже,
как и у тебя,