What is a good king without a competent right hand? Algus was the king's least beloved son, to the point that he was able to sell him to make amends for the death of the prince of the neighboring kingdom. After several years away from his homeland, Algus can return after the demise of his father, King Charles Rommer III, but to his surprise, a mysterious and cynical young man, known as the king's toy, welcomes him back.