Progressing his physical body, Satori also began making sure that he read books. It didn't matter what, really. Even if it was fantasy or fiction, Satori was just determined to ensure Tin read. Scrolls on techniques, on different forms of chakra control, war tactics, stealth and scouting, politics, or just fantasy stories. As long as he was working his brain as much as he was working his body, Satori was happy with it.
Tin didn't have to become a genius. But brushing back up on lost knowledge, and understanding what he was properly was important. Education was key for combat.
After time had passed, Tin was what Satori would now call an 'Average Genin' in his eyes. His body was no longer weak and decrepit, nor was it overly athletic and strong. His mind wasn't sharp and educated, but it was no longer slow and distance from lack of nutrition and focus on nothing but survival.
Had he magically changed him from a beggar in a little less than two months? No way in hell.
But--he had made some improvements, and he was a functional human now. He could move, run, jump, and had decent stamina. He was at the starting line, and from there Satori could work with him and improve him even further. That was the goal, now. Basic combat training was required.
So he had brought him to the training grounds. Now the large young man was standing in the center of one of the combat rings, waiting patiently for Tin to approach. He'd fallen behind a bit due to all the people. He was used to stares as a beggar, but since he was clean, trimmed, and in decent clothing now--no one was paying him a second look, nor any looks of pity or disgust.
It was probably very new to him. So he was letting him be, for now. Let him come in at his own pace.