Konan had a dream.
"The one on the far right is Konan, the one in the center is Yahiko, and the one on the far left is Nagato."
Jiraiya, dressed in a frog suit, said this to the three of them.
This was a small wooden house built somewhere in the outskirts of the Land of Rain.
During the Second Shinobi World War.
As an invader, Jiraiya had a change of heart.
He stayed behind to teach the three of them.
It was to make up for Konoha's invasion of Amegakure.
"What's that?"
Staring at the three boards, Yahiko asked.
"This is called a Return Board."
Jiraiya explained.
"The front is red and the back is white. You can flip the board over like this."
The flipped frog board revealed its white side, which had a frog drawn on it.
"In short, when you're here, you flip the board to the red side. When you go out, you have to flip it first so that the white side is showing before you leave... This pattern represents leaving."
"What's this even for?"
Yahiko curled his lip.
"Because you're the Toad Sage, we've been turning a blind eye to your aggressive attempts to sell us on frogs..."
Yahiko, who was also dressed in a frog suit, looked disgusted.
"Because security in this area is terrible."
Jiraiya shook a finger.
"We don't know when this place might be attacked. Since the enemy knows we're here... it's easy for us to be ambushed..."
"So if the board is red but the person isn't here, it means they may have been captured by the enemy. If the board is white but the person is here, they could be an enemy in disguise..."
Konan seemed to understand.
"That's right. Konan catches on quickly. You really are