Perhaps there were various reasons that he did not know about.
However, Su Yang did not care now and could not be bothered.
The reason was not important to him.
Right now, he just wanted to take down the entire undying life source as soon as possible and harvest all the mother nests.
After collecting all these resources, he would completely give up on this place after confirming that there were no more resources.
However, according to his estimations, with the resources in the undying life source, even if he collected all of them, it wouldn't be enough for him to break through to the next realm.
If he wanted to break through to the next realm, he would need another 10 billion Concept Points. However, each Eternal Realm mother nest could only provide him with 500 million Concept Points.
Now, he had eight Eternal Realm mother hives left, which meant that he could only get four billion Concept Points.