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.
It's been a long time, Shiroe.
Es ist eine Weile her, Sir Shiroe.
Ha pasado mucho tiempo, Shiroe-sama.
Il y avait longtemps, Shiroe.
Ne è passato di tempo, Shiroe.
Quanto tempo, Shiroe-sama.
Давно не виделись, господин Сироэ.