PS: Thank you to the book friend who donated ten thousand starting coins for waiting for the sunset.
When Su Xin returned from the Eastern Jin, the assistance of the White Lotus Holy Mother made Su Xin realize that the Great Zhou might have people wanting to kick him when he was down, so he decided to harness his connections and resources. However, he did not contact Meng Jingxian.
Therefore, this time when Meng Jingxian lent a hand, it was not at the invitation of Su Xin, but rather Meng Jingxian's own initiative to help.
Although Meng Jingxian was Xin'er's martial arts mentor, and there was a karmic relationship between him and Su Xin, it wasn't particularly close.
It could be said that if Meng Jingxian was willing to help Su Xin, it would be out of goodwill; if not, it would be understandable. Thus, Su Xin had not initially intended to seek Meng Jingxian's assistance.