Lin Wu had spent quite a bit of spirit Qi in helping Wang Xiong breakthrough and also to get him through the heavenly tribulation. In fact, it took Lin Wu more spirit Qi to control the tribulation lightning than it took him to push Wang Xiong past his bottleneck.
But now that he had absorbed all the spirit Qi in the spirit Qi spring, he had not only gotten that amount back, but he had also made a little profit on top of it. Lin Wu felt happy about this as it had put him closer to his own breakthrough to the Child stage of the Nascent Soul realm.
Still, Lin Wu would a lot more spirit Qi than just the minimum amount needed to upgrade as he needed to do other things as well. There were the needs of the system and the analysis that it would do along with the other cultivation techniques Lin Wu was using.
