Tang Dynasty: The Holy Prince, the Dragon that Reigns Over the World

When a useless engineering man named Li Chengqian was on the verge of death in a car accident, he traveled through time to the early Tang Dynasty and became the abandoned crown prince Li Chengqian of the same name and surname. With the help of the system, he reformed the government, swept away the barbarians, and expanded the territory. But this system is a bit unreliable at times. "Hey, system, why is there an achievement called 'God of Gay'? I'm a real man. My goodness, the reward is so high. You're forcing me to be gay."...