Honestly, the conditions Bai Yunfei proposed were quite extraordinary, and would have tempted anyone else.
Indeed, the conditions were outstanding as Yang Chen would be able to learn various alchemy techniques from the Huangshan Sect and enjoy many of their exclusive alchemy teachings. All he had to do was give 50% of his alchemy production to the Huangshan Sect for handling after he grew up.
For a young alchemy genius, this was a great deal.
However...
It was different for Yang Chen.
With Yang Chen's vision and knowledge, he could casually concoct an elixir that the entire Huangshan Sect wouldn't be able to refine. How could he be swayed by Bai Yunfei's proposal? As for Bai Yunfei wanting to take him as an apprentice, it was even more impossible. Yang Chen not teaching Bai Yunfei was already a concession, but Bai Yunfei teaching him?
But he couldn't say such things out loud.
Moreover, Bai Yunfei was sincere in his proposal, and Yang Chen felt embarrassed to turn him down.