Yue Ye had started to poison the Shadow Moon Palace Lord from a few years ago, to wreck and wear down his body bit by bit, waiting for that one day when the Shadow Moon Palace Lord's death came and the Shadow Moon Palace was in chaos, the two siblings would then be able to take the opportunity to escape for this demonic lair.
But the appearance of Jun Wu Xie had completely messed up Yue Ye's plan. Seeing with her eyes that the Shadow Moon Palace Lord's condition was actually gradually becoming better with the Melted Snow Elixir that Jun Wu Xie had presented and her own plans could possibly amount to nothing but wasted effort, Yue Ye could not sit back and do nothing.
And at that time, Elder Yue had also similarly been thrown into a frenzy with the appearance of Jun Wu Xie and had attempted to make use Yue Ye to frame Jun Wu Xie. Yue Ye had then gone with the flow and thought to poison Jun Wu Xie, which brought about the deaths of a whole pool of koi.