Prince Yu, the fifth son of the emperor, Prince Qizhu, the biggest rival of the current prince.His biological mother, Xiangbi (actually Princess Linglong of the Hua tribe), died young and humble, but he was raised in the palace of Queen Yan since he was a child, and was regarded as her own by Queen Yan.He is hypocritical, tactful, and extremely ambitious. His ambition and obsession for the throne have been soaked in his blood and bone marrow.After learning about his life experience, he was deeply disappointed that Emperor Liang used him to check the power of the prince, and committed suicide after the rebellion failed.