Albert Blackwood, who is usually called Sir Albert, is one of the royal guards in the palace. He is the son of the infamous heroes who defeated the red dragon and protected the kingdom. The royal families, however, didn't acknowledge their outstanding bravery and acted as if the kingdom didn't need any of their protection to begin with. And that is what makes him hate the royal families, including you, the crown prince. He hates the disrespect. And he swears that he will take revenge for them.