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.
Trying to profit on the name 
of a destroyed country?
¿Tratan de conseguir poder con 
el nombre de un país destruido?
Ils comptent s’enrichir
sur le nom d’un empire déchu ?
Cerca di approfittare del nome
 di una nazione distrutta?
Tentar ganhar poder ao usar o 
nome de uma nação destruída?
Пользоваться названием павшего государства…