Zongwu: Birthday Banquet, I Have Invincible Cultivation

Nine states stand side by side, martial arts are rampant, and the Qin Dynasty sits on the throne of the First Emperor and dominates the world. Ying Xiuyuan traveled through time and became an under-appreciated seventh prince. He deliberately messes around to make people look down on him. He uses birthday banquets to test the emperor's heart. He secretly practices magical skills and quietly holds the top power that can sweep across the world.