Xiaren traveled to Daqian, an imaginary historical dynasty, and became the only son of the prince. He originally wanted to make money and be an idle son, but unexpectedly, due to the martial arts he learned, he was entangled with his father in the court, and he had to be involved in the struggle of the court. When he first entered the capital, he was surrounded by dangers. When he encountered an assassination, the family provided more terrifying news in order to calm the anger of the prince.