Eternal Upgrade

The young man Fu Ming has a mysterious identity, and there are two extremely powerful trolls living in his body, but he knows nothing about them. One day, the troll takes over the body. How should the host Fuling deal with it? Young Fu Ming was born ordinary, but through ordinary training he became a strong man. Because he was too powerful, he could not find an opponent. In addition, his close relatives died and he had no feelings at all. He could only choose to be reborn... The road to rebirth is extremely long. The Eternal System tries its best to resurrect Fu Ming and reshape his body for thousands of years to travel through another world. What interesting things will happen to Fu Ming in this other world?