Xiao Se's judgment was perfectly reasonable. The Wrathful Sword Immortal and the Lone Sword Immortal respectively served the White Prince and the Crimson Prince. Although the current Emperor of Bei Li had many sons, only the White Prince, the Crimson Prince, and the Yong'an Prince were qualified to inherit the throne. Each of the three had one of the Five Great Sword Immortals behind them. Strictly speaking, Xiao Se had more than one of the Five Great Sword Immortals behind him; the Confucian Sword Immortal also had an inexplicable connection with him.
The Dao Sword Immortal of Qingcheng Mountain, Zhao Yuzhen, could be considered the only neutral Sword Immortal. But considering Zhao Yuzhen's relationship with Li Hanyi, if he had not died in the original work, he could also be counted as being on Xiao Se's side. Even if Zhao Yuzhen wanted to remain neutral, that depended on whether anyone would believe him.
"I don't care either way, so I abstain." The group of four then began discussing whether to make a detour to Mu Liang City. Shen Fei was the first to state his position. He was somewhat curious about the Lone Sword Immortal, Luo Qingyang. Meeting him or not did not matter, but Luo Qingyang's swordsmanship, the Nine Songs Swordplay, intrigued him.
Shen Fei was familiar with the so-called Nine Songs. After all, there was the Yin-Yang School. Luo Qingyang's swordplay was named after the Nine Songs and had roughly eleven moves, from Donghuang Taiyi to Li Hun.
If he encountered the Lone Sword Immortal, Shen Fei would probably ask him for a lesson in the Nine Songs Swordplay and see his sword moves. But he would not go out of his way to meet him.
Although Lei Wujie dearly wanted to see Mu Liang City, the final