Matthew was very patient with Yaya's efforts.
Even someone as talented as Yaya struggled with learning, despite all the conveniences he provided.
It must be even more difficult for other people!
Rather than that, it was better to let Yaya try more, so that all the possible mistakes a new scholar could make were made once.
An hour later.
The 20th test subject had completed the second surgery with the "help" of Yaya.
"Huh? Was it successful?"
Yaya, who possessed a strong psychological quality, turned her head, looking at Matthew with anticipation.
Watching the test subject soaking in nutrient fluid, Matthew nodded with a smile:
"It was a success, well done."
The original subject was a Level 4 Warrior.
Not only did the super-specialty Steel Muscle Iron Bone become apparent,
but his Challenge Level had also soared from Level 4 to 7+ in an instant!
He had transformed from an ordinary Professional into a strong Elite unit.
