Shen Changchuan ultimately obtained the breakthrough Secret Technique known as Qi Absorption and Essence Return from Wu Tianhao.
Wu Tianhao didn't ask for anything in return.
In fact,
when Shen Changchuan explained his purpose, Wu Tianhao took it out directly.
Shen Changchuan had insisted that he couldn't accept a reward he hadn't earned, offering to help resolve some trouble or purchase it with Spirit Stones.
But Wu Tianhao refused.
"Payment? That won't be necessary."
"This isn't anything precious. I happened upon it years ago while exploring the ruins of a predecessor's cavern residence. It's a Technique they created. While it's useful for those at the Soul Emergence Realm Third Layer Peak, it's not some incredible Secret Technique."
"There's no need for such formalities between us martial brothers."
