Empire's Secret: A Portal to the Cultivation World

He and his brother just wanted to live peacefully. However, he was targeted by a young lady from a rich family. And from then on, their life became harder. But, as if an opportunity had arrived at them, they were suddenly transported to another world. However, after being discovered by the emperor, the protagonist has now become a candidate to be an emperor? Read and see how Aither's journey becomes from keeping his brother safe to finding the secret of the empire and go to the cultivation world.