The reason Ye Mu Bai came here was so he could witness Duan Ling Tian's death with his own eyes.
Duan Ling Tian had killed his third brother, he hated him to the core. He wanted to tear Duan Ling Tian into a thousand pieces, but he did not have that ability and could only depend on King Qian. However, it seemed as though the person he thought he could depend on could not do anything to Duan Ling Tian as well.
Initially, he was curious about the Devilseal Tablet as well, but he had completely lost his interest when he found out Duan Ling Tian had killed Lin Dong. Naturally, his lack of interest had a lot to do with his self-awareness. He knew he did not possess the ability to obtain the Devilseal Tablet.
Ye Mu Bai looked at Duan Ling Tian. He really wanted to charge forward and seek revenge for his third brother with his own hands.