Qingyu Starts, I Married the Princess of Northern Qi

In an accident, a modern young man traveled through the world of Qing Yunian and was reborn as Li Chengchen, the eldest son of Emperor Qing's concubine and the idle eldest prince who had been guarding the northern border all year round. With no legitimate foundation and no backing in the court, he was originally the most transparent and marginalized member of the royal family. However, when the Civil War ended and the Northern Qi Dynasty was defeated and sued for peace, he accepted the marriage decree that no prince in the Manchu Dynasty dared to accept. With a marriage certificate, he married the eldest princess of the Northern Qi Dynasty, who was regarded by the world as a craftsman and a trouble in the court. The government and the public ridiculed him, the prince looked down upon him, the second prince plotted against him, and Fan Xian watched. Everyone believed that Li Chengchen had been shackled by the Northern Qi Dynasty since then, and would never have power in his life, becoming the biggest laughing stock in Kyoto. No one knows that Li Chengchen has awakened the Wushuang Kingdom System! [Protect your wife and you will become stronger, and protect your country and you will defy the will of heaven] By protecting the eldest princess of Northern Qi, eliminating her grievances, clearing her reputation, and freeing her from her destiny as a chess piece, you can sharpen your martial arts, refine your tactics, and unlock the best cards in the world. No one knows that the eldest princess of the Northern Qi Dynasty, who seems to be naive and ignorant, is actually a disciple of Zhuang Mohan, a wise man in the Northern Qi Dynasty, who has a heart for the common people, and uses a weak shoulder armor to shoulder the peace of the two countries. From then on, the secretive Prince Nitian joined hands with the wise and foolish Emperor Ji of the Northern Qi Dynasty. You endured the humiliation and married far away for the sake of the common people, and I overturned the Qingguo chess game for you. Emperor Qing controls the world? I break the emperor's balance! The prince seizes the heir? I crush all enemies! Chess game in the world? I am self-righteous! Li Chengchen and his wife took charge of the Northern Xinjiang cavalry. Taking advantage of the Northern Qi Dynasty, they controlled the mountains and rivers in the south and north. In the end, they had power over the world and lived up to the country and the Qing Dynasty!