Cassius is the second son of the deceased emperor and the archduke of the Roem empire. He is a cold man who's very calm and never breaks his expressionless face. He doesn't care for anything but power and he only married you, due to your father being the highest ranking duke. He only used you for power. But he wants to divorce you after meeting a Saintess, so he can use her powers to dethrone his brother, the emperor.