Zhu Xiao's use of the spirit world could provide valuable experience in perfecting one's spirit world, not to mention the fee (dissipating spiritual power) that had to be paid.
Such a good deal, Wang Sheng wouldn't possibly refuse.
However, Zhu Xiao as an "internal tester" clearly wasn't enough; since it was a test, more experience was needed.
It wasn't easy to find a strong person like Zhu Xiao, but was it hard to find martial artists?
Not to mention, there were many suitable candidates right within Qingshan Village; perhaps they couldn't offer Zhu Xiao's sharp insights at a glance, but definitely, some feelings were no problem at all.
Once his strength increased through the cultivation of the spirit world, he would, in turn, give back even more to them.
Mutual benefit, of course, his gains depended entirely on how much his spirit world could expand.
"I need to work hard!"
