Of course, there was a prerequisite. He needed an endless supply of energy to ensure that the Shadow of Harmony could convert enough energy.
Although the Shadow of Harmony did not say anything about this process, Lin Bei knew very well that this guy would definitely deduct some energy to nourish himself. However, this was normal. Now, he and the Shadow of Harmony were just cooperating with each other. It was just mutual benefit.
As long as it wasn't too much, Lin Bei wouldn't mind.
After all, to him, an unlimited supply of energy was nothing. He had an unlimited buff that kept recovering. It was actually very simple to do that.
"However, it's better to hide the matter of the Shadow of Harmony. If someone with ulterior motives finds out and recruits people to snatch it, it will be troublesome."
Lin Bei knew that a man's wealth was his own ruin.