Three Years
Three years went fast and Yang Lujia was still not finished fusing his two bloodlines. He was still stuck in the final process. However, the final process was the most taxing and rigorous one, making him unable to stop. If he were to stop, otherwise, there could be a possibility that he would be permanently injured.
It was just like what Fortuniel said.
During the three years that passed, he remained in his lotus position. Meanwhile, the Void Ground opened three times already and Cai Hong, even without the help of Yang Lujia, was able to enter the Void Ground. He had also long set free the other people who were kneeling before him.
Cai Hong was just baffled how His Highness took so long to come out. He tried to attack the Void Ground and break through its barriers, but he couldn't do so. However, he stopped after one try as he knew that His Highness would be powerful enough to fend for himself.