The Father Was Arrested at the Beginning! What Does This Make Me Do?

Li Changan travels through the Daqian Dynasty. As the prince of the prison country, he encounters his father being arrested at the beginning... What should I do with this... Ahem... Back to business! I'm going to be a dynasty! The emperor guards the gate of the country, and the king dies in the country! There will never be an emperor who is captured or humiliated! Since my father has been captured, then I, Li Changan, should be my father and fight to the death for Da Qian, sweeping away the barbarians from all directions! Unify the world!