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.
I won't let you lay a finger on Iselus!
Ihr werdet Itherus kein Haar mehr krümmen!
No dejaré que toquen a Icelus.
Vous ne toucherez plus
à un seul cheveu d’Icelus.
Non toccherete Iselus neanche con un dito!
Não vou deixar que relem no Iselus.
Я не позволю и пальцем тронуть Исельса!