Inside the Hokage Building.
Having finished his official business, the Fourth Hokage stared helplessly at the anonymous letter on his desk.
As Hokage, he received plenty of letters. During the days he had spent teaching the Will of Fire at the Ninja Academy in particular, dozens had arrived, all containing things the academy children wanted to tell him.
The anonymous letter before him was simple: within the next few months, a powerful ninja would attack Konoha, someone whose strength rivaled the Hokage's.
Normally, he would not have paid much attention to a prank letter like this. At most, he would have sent someone to reprimand the sender and left it at that.
But according to the ANBU's report, they could not find the sender, which meant a ninja had sent it.
Even if it was a prank, the involvement of a ninja changed its nature entirely.
Ninja were part of the war machine, their very existence synonymous with battle and intrigue.
However, dealing with the reforms left him little energy to spare for this matter. He could only keep the contents in mind and reinforce the village patrols. There was no harm in being more vigilant.
Just then, the previous Hokage, the Third, entered the office. He glanced at the Fourth Hokage and said, "Minato, it's been a while. You've been a little impatient lately."
He had come because of the Fourth Hokage's recent reforms. He would not openly oppose the successor he had personally elevated to the position, but he felt the recent policy changes were a little too hasty and might meet resistance from the established powers.
The Fourth Hokage did not reply immediately. Instead, he slid the anonymous letter over to the Third.
After reading it, the Third frowned and asked, "Where did this information come from?