Yun Juanshu once promised Zhong Yue that he would delay Mu Xiantian's ascension as the Heavenly Monarch, and he delivered his promise.
Di Ming's death, Monarch Jin Tian's surrendering to Queen Goddess after being injured, Celestial Monarch Jin Wu's escape and the heavy blow on the many monarch races.
Behind all of this was a single mastermind, an unseen hand pulling the strings.
Behind Consort Tian Si and Feng Wuji was Monarch Qing He, hence, these two became the intermediary between Monarch Qing He and Queen Goddess. Back in Di Ming's birthday banquet, Zhong Yue once saw Feng Wuji's carriage riding alongside Queen Goddess' and that was when he suspected something, but he never thought that Consort Tian Si was already with Queen Goddess.
And the one behind Queen Goddess was Yun Juanshu himself, it was him who helped Queen Goddess remove Mu Xiantian and Di Ming and acquire the throne.