Celestial Seal
The attacks that Xue Wei was releasing did pose some threat to this young-looking ghost, but it was not to the point where he had to be so careful that he could not fight back.
The difference between the strength of the two sides was not something that could be removed merely by using some elemental Qi, but it did make things trickier for the young-looking ghost.
At the same time, it also managed to help them delay for a longer time. The ghost could not help but begin considering his options. He was unwilling to leave with no benefits.
If he left like this, he would become a wanted figure. Xue Wei would undoubtedly inform the branch leader of his betrayal, and he would have lost both his stable position, but also the benefits that had tempted him to do so.
The struggle was clear in his eyes, and he did not manage to launch an intensive attack, spending most of his time dodging the lightning bolts that Xue Wei sent his way.