Chapter 39: Jiraiya's shock

Hiruzen was in his office finalizing the genin teams and their senseis. There were also genin teams that graduated normally in their fourth academy years which had to be also finalized. He was also waiting for someone to arrive.

As he was thinking about the person who was late to arrive to meet him, a man with long white hair appeared at his window.

Before the man could say anything, Hiruzen asked with a smile "Finally, You remember your old sensei?"

Jiraiya replied "I was gathering materials for my book you know. So why did....."

Jiraiya stopped his words as his eyes widened. He felt something extraordinary from his sensei.

"Is that Nature chakra that I am feeling coming from your body?" Jiraiya asked shocked

"It looks like that I can't hide this fact from someone who is a sage just like you. Even Orochimaru could not sense anything from me." Hiruzen said as suddenly smoke enveloped him.

'Transformation jutsu?' Jiraiya thought but when he saw what came out of the smoke his eyes threatened to pop out of their sockets.

His sensei who had white hair and wrinkles on his face looked like the man who taught him while he was a genin.

"What trickery is this sensei? You look like you have just turned twenty. Are you using the transformation jutsu that Tsunade uses?" Jiraiya asked

"Hahaha. No. I have truly turned young Jiraiya. Ah, it feels good to be young again." Hiruzen laughed

"How?" Jiraiya asked

"I started training sage mode. The monkey sage mode to be precise. Every summoning clans have different ways to train their sage mode. The monkey sage mode is the most peculiar one according to the Monkey sage."

"While learning toad sage mode, you need large chakra reserves and a strong physical body while to learn monkey sage mode you need large chakra reserves, control over your entire body, brilliant chakra control along with some other things. It is thus very difficult to learn."

"The Monkey Sage mode is special since it makes the body physically stronger itself by enhancing the body cells with the nature chakra itself. The nature chakra has rejuvenated my cells making them anew like a newborn cell's brimming with power. It has helped me regain my youth but I am by no means immortal. It's just a one-time thing."

"I think that I could punch like Taunade now hahahaha" Hiruzen said while showing his newfound muscles to his student.

"To train monkey sage mode, one has to store natural energy and absorb it in their cells while also maintaining an equal ratio between the natural energy and normal chakra at all times. If I could not do it, it would have the opposite effect, the natural energy would have sucked my vitality instead of giving it to me." Hiruzen said

"So you are saying that you always have nature's energy stored in your cells and you can activate your sage mode in a matter of seconds?" Jiraya asked

"No, I can't use the nature energy stored in my cells. This would break the balance in them. If I ever did that, I would turn old again. But yes, it makes sensing and gathering nature's chakra easier and entering the sage mode within seconds."

"Why do I feel my decade of training in toad sage mode was a waste?" Jiraiya had a jealous expression on his face

"I thought you did not have any talent in learning senjutsu." Jiraiya said in a sour voice.

"Huh? Who said that I did not have talent in senjutsu? It's just that I never had time or tried learning it before." Hiruzen said as he recounted the events of the past and what led him to learn senjutsu.

"During my childhood, I was learning the basics of being a shinobi and different jutsus and then I was being taught by Tobirama sensei."

"When he died, I had to become the Hokage at a young age. I was busy stabilizing the village after the first great shinobi war as many were not happy with me becoming the Hokage."

"I also had to learn and train all the different jutsus inside Konoha. I also had to train you guys. Then the second great shinobi war began. Not long after that, the third great shinobi war began."

"After I gave my position to Minato, I thought that he would be able to protect the village from all threats and I could enjoy my retirement."

"You know how that ended," Hiruzen said with a sigh.

"I realized that I have to depend on myself to protect the village. I can't rely on my students or other shinobi. One of my students is away from the village to get material for his book. Another does not want to come back to the village. And the last one who is in the village is too busy with whatever research that he is doing." Hiruzen said as Jiraiya looked down feeling bad to leave his sensei alone at the time of crisis in the village.

"I needed to be strong to protect my little Ken, my family, my friends and the village. Thus, I decided to learn the sage mode."

"Well to be fair I have not yet mastered the sage mode. Maintaining the balance of your chakra in trillions of all of your body cells passively does not happen in just a year. I also have to learn the three monkey sage arts." Hiruzen said with a chuckle

"Well, You are back in your prime with more physical strength and chakra reserves higher than ever. It looks like Konoha has its God of the Shinobi back." Jiraiya said with a smile

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