Quality post - Qiu Yinong will (propably) betray stab Chen Ran in the back this arc
First, Yue Guanshan has definitely chosen the top-tier seven stars for his teammates
Chu Yinian, and Qi Yanqing have outrageous skills and Zhu Yiting is self explanatory.
But one thing is amiss... Feng Qirui seems tobe a bit underqualified.
First, his skill should break apart teams. But other than a double KO scenario, such a skill with only long-term effects should not qualify for Yues team. Also, if someone suddenly started acting out, CRs team would be aware and defend themselves. So, what we get is that Hate Sea Clear Sky is a covert mental superego skill with both short and long term effects.
We still have a problem here. This skill needs to be used ideally on team CR. And, there is a requirement of hiddeness too, better even for time-travelers like was boosted Han Fei.
So, Yue Guanshans knows this and devises a plan. The sends FQ to fight QY one on one where no one is watching. There he has an opportunity. 1. Qiu Yinong would never get hit by HSCS directly, only in a future only she can see. Still, the effect would count - it must be outrageous given that it should be seven star. And given QYs military strategy, she will wait till the perfect moment to attack...
So YG either 1. has FQ kill QY or 2. Has QY betray team CR - both options work out well.