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.
Miss Isuzu, if you go home,
Sicher kannst du dann mit deinem Vater
musizieren, wenn du zurückkehrst.
Miss Isuzu, si vas a casa,
 podrás tocar con tu padre, ¿no?
Imagine, Ms Isuzu. Si tu rentres,
tu pourras jouer avec ton père.
Miss Isuzu, se tornerai a casa,
Senhorita Isuzu, se você for embora,
Если вы вернётесь домой, мисс Исудзу,
то сможете сыграть с отцом.