Ye Xishui was the woman that was once pursued by the Twin Holy Dragons of Black and White. She had once had a sentimental relationship with Mu En, which eventually ended tragically. The love and enmity they shared were never forgotten by Mu En even when he was on his deathbed. It was the biggest regret of his entire life. She later became an Limit Douluo as an evil soul master. Those in the Sun Moon Empire also known her title with Death God, and respectfully called her Lord Death God. She was considered the number one soul engineer and was already more than a hundred and eighty years old. She was only loyal to the imperial family to gain benefit for Holy Spirit Cult. She had been the Hallmaster of the Illustrious Virtue Hall two generations ago. She was recognized as the person closest to becoming a Class 10 soul engineer. It is later revealed that she had a child with Long Xiaoyao.
She has Twin Spirits. One of which is the Bloody Demonpuppet, and the other is the Bright Phoenix. She has six ten thousand year and three hundred thousand year soul rings.