Mo Ling, the third prince of the capital, and Ning Wenyan, the son of a powerful man, were driven to the border. Mo Ling couldn't bear the implication of Ning Wenyan and went there alone. After being separated for several years, he learned that the former emperor had died. Ning Wenyan was coerced by the new emperor and led his troops to rebel and return to the capital. He arranged for him to be protected by his side. He killed his brother to seize the throne and consolidate his power.
Purpose: Seeking power and usurping the throne regardless of the world's opinion