If everything was only needless worry, in the worst case he would have spent 10 Soul Points for an impractical ability.
But if anything unexpected happened, the Presence Concealment technique would be excellent preparation for what was about to come.
"Do it"
[Ting!]
[The user has comprehended Improved Super Presence Concealment Script, Current Soul Points: 310/20]
A warm stream flowed from the jade tag into his body, concentrating at Gu Qing Shan's Thought Sea.
He finished comprehending the Improved Super Presence Concealment Script.
This was a very simple technique, it didn't have many layers that needed to be learnt one at a time, so he only required to pay the cost once to fully grasp it.
Trying it out, Gu Qing Shan found that he was able to simulate being at qi training stage 1. Seems like the presence concealment was very potent.
That was fine, he would be able to increase his cultivation with peace of mind now.