Being an emperor is not something he can do, so he can only rely on his connections.

Zhang Jingwei, a typical social animal in the 21st century, ate poisonous wild mushrooms and traveled to an imaginary era. He crawled out of a coffin just after arriving in this world. He couldn't accept the fact of traveling back in time for a long time, and he couldn't accept being a son-in-law and being beaten by his wife. As a social animal, he naturally doesn't know martial arts, and it's impossible for him to make firearms, let alone red cannons. What if he found oil? He can't make fuel. Steam engines are even more impossible. The people here speak well and are all talented. He doesn't know how to be an emperor, so he can only rely on his connections to make a living. ...