Su Chengyu ended his meditative cultivation and opened his eyes. It coincided with the end of the battle between the Heaven-Mending Stone and Deng Taihui. Deng Taihui was thrown out of the Five-Colored Divine Light by the Heaven-Mending Stone. He was covered in wounds, bloodied, and fell to the ground. While he was not dead yet, he was hanging on by his last breath.
Su Chengyu recalled the Heaven-Mending Stone, wore it on his wrist, and immediately walked over to Deng Taihui. Deng Taihui struggled to raise his hand and spoke, "You... you..."
"On my own, I indeed can't kill you. But I have assistance, and you don't. So I knew that the one to die tonight would be you."
With that, Su Chengyu sent a hint of Sword Qi from his fingertip, severing Deng Taihui's head, leaving only a headless body. Fresh blood dyed the ground. Flashing his sword light in front of him, he held Deng Taihui's severed head and flew away on his sword.