Not long after Sasuke arrived, Shamu showed up as well.
Shamu carried a bag in his hand. After Sasuke arrived, he took a brush from the bag and drew a circle with a three-meter radius atop the Hokage Tower.
Sasuke naturally walked into the circle and stood still.
Shamu stuffed the bag into Sasuke's hands.
"For the coming period, you have to stay inside this circle."
"You can do anything you want, but you cannot train. Neither Chakra extraction nor taijutsu training is allowed."
"Only in the morning, noon, and evening can you leave for five minutes to use the bathroom."
"There are seven scrolls in this bag, each containing something different. You may open one each day."
"Other than what is in the bag, you cannot eat anything else."
Sasuke was somewhat bewildered. "So, Master, do I have to stay here for seven days?"
Shamu shook his head. "No. You stay until I decide you've qualified, or until you give up yourself."
Sasuke's expression shifted uncertainly. "I can't train here?"
Shamu wagged a finger. "The moment you refine Chakra even once, you fail."
"Or if you draw the Kusanagi Blade even once, or do taijutsu training even once, then you'll lose your chance."
Sasuke looked at the circle with its three-meter radius, unable to understand what his master intended.
But he wanted to become stronger far too badly.
"Alright, Master. I won't leave this place."
"Grrr..."
It had only just passed noon. Sasuke had fought Naruto, and his stomach had already begun to growl.
Shamu raised one finger. "Today is the first day."
"You may open one scroll."
"When you qualify, I'll come get you."
"Or if you fail, come find me yourself."
After saying that, Shamu vanished.
Sasuke stood there somewhat dazed. It was now late summer and