Nothing new transpires under the sun.
This line from the Bible makes perfect sense, as no matter what happens between humans or how extraordinary it seems, it's merely a repeat performance of human nature.
Looking back on thousands of years of human history, we'll find it's predominantly influenced by the Five Poisons.
Greed, anger, foolishness, doubt, and arrogance.
Extreme greed prompts people to keep taking, even their so-called spiritual cultivation is nothing more than the ultimate expression of greed. It's clear from the theory of capitalism, excessive profit ordinarily leads to desperate measures.
Shen Yue's mind may be like still water, but that doesn't mean he's ignorant about these schemes.
On the contrary, because of his clear mind, he understands these schemes perfectly well.
And naturally, he has his own ways to deal with such schemes.
Hence, when he heard Ye Xuan'er's question, he already knew she was setting a trap.