Shang had no idea how long he had already been training, and he wasn't even thinking about it. He had completely let go of everything and only focused on training.
When he got thirsty, he simply drank a bit from the bucket.
When he became hungry, he simply took out some of the dried meat from his old backpack.
The training was also very draining on his stamina, but his stamina got quickly replenished by his Mana.
When his Mana ran out, Shang simply sat down to gather some more. Refilling his Mana only took him like an hour or so.
As long as Shang didn't have any serious injuries or broken bones, his Mana refilled with a lot of speed. Apparently, healing fatigue and slightly torn muscles wasn't eating up even nearly as much Mana as an actual injury.
As Shang continued looking at every single technique and practicing them, he slowly began to feel mixed feelings.