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.
The eldest daughter Liseltia,
Ihre älteste Tochter, Risselthea,
ihre zweite Tochter, Rayneshia,
La hija mayor, Risselthea, 
la segunda, Rayneshia
Risselthea, l’aînée,
Raynesia, leur seconde fille,
La primogenita Liseltia,
A mais velha, Liseltia,
Старшая дочь, Лисертия, вторая, Лейнессия.