Aside from these four enhancement methods and item exchanges, there were two more entries:
Mysterious Enhancement: Locked.
Special Modification: Locked.
These two actually represented "Seven Fiends Rebirth" and the "Blood Floss Modification System."
Wu Heng had not explicitly labeled the two options, offering only vague hints to give them some hope.
Of course, if there really were Tower Guardians who passed Wu Heng's tests, caught his eye, and proved trustworthy enough, he would not mind giving them a chance.
Moreover, whether it was ordinary foreign-body transplantation or other modifications, each option had its remaining quantity listed beneath it.
That meant these things were not inexhaustible.
Although, to the current Wu Heng, they were practically limitless, only by listing a quantity would they seem precious.
It also told others that he could not enhance everyone without limit.
Otherwise, not only might he be morally coerced into helping everyone in reality, but even the Tower Guardians recruited into his own tower might develop improper thoughts.
For example: Since the Tower Master could easily perform these enhancements, why not simply make them tower benefits and give them to us?
All sorts of such emotions could arise.
But once these things had quantity limits, scarcity made them valuable, and no one would have anything to say.
As for replenishing the quantities later, he could add more whenever he pleased.
Sildan and the other two would manage and handle all of this, so there was no possibility of information leaking.
"Tower Master, after my previous Tower Master faded away, there are some Tower Guardians I know. With your reputation and my guarantee, I should be able to recruit them. Do you want me to bring them in?" Old Lamp asked.
"Yes." Wu Heng nodded.
After giving his instructions, Old Lamp and Chu Keying immediately left