Great Zhou had a cooperative relationship with the Esoteric Sect, but very few had actually dealt with the Esoteric Sect, and Su Xin was the one who had dealt with them the most.
Normally, it would be most appropriate for Su Xin to go to the Esoteric Sect to ask Sonam Tsering for help.
However, things between Su Xin and the Esoteric Sect later turned very unpleasant due to the incident involving Dongping Province and the Happy Sect.
Specifically concerning the Happy Sect incident—where Su Xin forced Venerable Dragon Treasure of the Happy Temple to cripple his own martial arts—this had caused the Esoteric Sect to lose all face. It could be said that Su Xin had entirely torn his ties with the Esoteric Sect.
Thus, sending Su Xin to ask Sonam Tsering for help would stir trouble before even asking, and it was likely that both parties might end up fighting.
