Yang Wu had given his actions some thought.
Actually... raising all the Earthlings to the Planet-level in one go would amount to forcing growth, and might even lead to a series of unpleasant consequences.
After all, if everyone reached the Planet-level and possessed overwhelming strength, they could easily deal with the monsters, but who knew what trouble might arise? He did not want to test human nature.
"We can only proceed step by step. First, we'll distribute some diluted Azure Wave Marrow and raise the overall strength of the Earthlings to the Warrior-level and General-level," Yang Wu said silently.
"Afterward, we'll let things settle for a while before raising the Earthlings to the Wargod-level."
"Fortunately, I have more than a thousand Cosmic Level Slaves under my command in the early stages. They can suppress any unrest. Hopefully, no chaos will break out..."
"By the time of the Genius Battle, I should be able to obtain the entire Milky Way Galaxy."
"Once the Earthlings gradually connect with the Milky Way Galaxy, we can raise them all to the Planet-level."
"Planet-level... they'll barely be able to connect with interstellar civilization by then. However, if they choose to leave Earth, they probably won't be able to return for a very long time."
"How they choose is their business. I'll remind them of this as well."
"To prevent Earth from being exposed, temporary restrictions... there's no other way."
"Once my strength improves further, there'll be nothing left to worry about."
Yang Wu also understood that it was impossible to cultivate the Earthlings while preventing them from connecting with interstellar civilization.
Yang Wu had no particularly good solution either. At most, he could slow the process down a little.
It would not be too late to raise them rapidly after they had adjusted their mindsets.