With Xu Xing, someone at the same Realm as Shooting Sun Marquis Wuyi, to tie him down.
Coupled with the two Great Demon Immortals providing long-range support...
No matter how strong Shooting Sun Marquis Wuyi was, he would eventually be worn down and killed.
Moreover, Xu Xing and Shooting Sun Marquis Wuyi shared an irreconcilable feud, so there was no concern that Xu Xing would defect mid-battle and unite with Shooting Sun Marquis Wuyi to hunt *them* down.
The plight of Universal Salvation Sect Saintess Shi Yuyan during her three months in the Shooting Sun Marquis Mansion was known throughout the world!
More importantly, Shi Yuyan had been imprisoned by Demon Immortal Kou Chun in Moyun Palace. If Xu Xing wanted to save his birth mother, he had to enter Moyun Palace. Otherwise, as time dragged on, Shi Yuyan's fate would be uncertain.
The three of them shared the same goal, making them ideal allies.
"This is the Lithographic Stone left by Kou Chun that day..."
