Tang Dynasty: Summoning the Empress at Midnight

Modern youth Lin Hao travels to the Tang Dynasty's Zhenguan era and becomes Li Shimin's long-lost eldest son. On his first night back in the palace, he awakens an 'Anti-Tang System' that grants divine rewards for actions that undermine the Tang's interests, break imperial ethics, or damage its fortune. Knowing the brutality of imperial succession, Lin Hao uses the system to pursue a path of rebellion and subversion. He openly threatens Crown Prince Li Chengqian's position while secretly entangling Empress Zhangsun in a forbidden relationship, turning her into a deadly mole beside Li Shimin. The story breaks the typical 'assist the Tang' trope, focusing on villainous plunder and court taboos as Lin Hao systematically dismantles the Zhenguan golden age.