C450 Dangerous Situation.
What happened after that was simple and straightforward. After putting away the Thunderfire Annihilation Formation, the weakened Cheng Kun naturally found it hard to resist the Soul Controlling Technique and was also taken in as a servant by Jian Wushuang.
Jian Wushuang had already gotten familiar with dealing with these things. After pondering for a while, he put them back in Divide