if there will be a plot later on about he offended someone not considering he have still a parent to take care of and become a hostage or a way to target him then this novel is not worth reading. first of all he is a transmigrator even the author didnt put his actual age before, he transmigrated 20 years past so he should already know the basic danger of cultivation,
Ah yes, good idea to join a sinking ship for no reason. They have less resources and more enemies. The "benefit" of him getting priority if he wins would be given to him wherever he went, but he would probably also get a ton of other rewards and less hassles... He isn't even friends with the girl, so why is he helping her? He constantly was going for efficiency by leaving right after he won the tournament matches so he could cultivate more, etc so why is he changing that now randomly?