The fact that the Dragon King had confidently requested to have more than one enemy stood in stark contrast to his previous attempts to delay the process as much as possible, which made King Shengri suspicious. So, when Iron Harrier chose the elders of the Jade Pure Sect as his helpers, he didn't immediately agree, instead looking for hints from the two hunchbacks of the Essence Pavilion.
Old Man Mu was just as perplexed as King Shengri. The Dragon King's victory or defeat was a matter of his own life and death, so he leaned forward and waved. When the Dragon King looked down, he lifted his collar a little, revealing a soft armor inside, and slyly winked.
This soft armor was one of Old Man Mu's life-saving tricks. Ever since he had been hunted down and nearly killed by the crowd more than a decade ago, he made up his mind to wear this soft armor no matter how good his kung fu was.