Xu Mu and Xu Lingyu traveled by carriage from the princess's mansion to the imperial capital's Palm Immortal Office. On the way, Xu Mu wanted to bond with Xu Lingyu, but the latter stayed quiet as a closed bottle without uttering a single word.
If he hadn't known that the other party wasn't mute, he would've suspected him of being so.
Of course, for a cultivator at the Golden Core Stage, unless practicing a distinct martial method, they wouldn't become mute.
"I really don't know how Li Youlan managed to recruit him, and it seems like she trusts him a great deal!"
He also learned that Xu Lingyu had joined earlier than the others.
"Soul Cultivator!"
He remembered Li Youlan's introduction of Xu Lingyu.