Tuition
The weekend finally arrived, and Nero had 4 hours in which he could do whatever he wanted. After that, it would be right back to training, though on the weekends it was considerably lighter.
After all, he would not get any aether rich food on the weekend. He chose to spend his first free hour just laying in bed. Although he was used to intense training, that did not mean he was immune to the fatigue of nonstop training! The past week had been simultaneously extremely long, and extremely quick for him.
It was long because while training, whether it was with his innate ability or his spear, he was tremendously aware of each moment. It was similar to how time seemed to slow down when someone untrained performed a plank. At the same time, it was incredibly fast because Nero had absolutely no time to think.