Painful adaptation
"I understand but I have a question. Why not spread sage mode since you clearly can? Surely having many sages would help the village greatly so why not?" Kakashi asked seriously.
I sighed and shook my head "You are misunderstanding something. You are looking at sage mode as if it were merely another technique like the [rasengan]. The truth is not so simple. Sage mode is a dangerous crutch if someone without enough power to begin with learns it. It's something meant to enhance what is already there, not serve as a power onto itself. You already come close to S rank and thus have a plethora of things to be enhanced, the rest don't." I explained seriously.
"So in the long run it would do more harm than good for the village." he said with a look of understanding.
I nod "It would kill or at the very least cripple the potential of those who shouldn't have learnt it had I not existed. Chunin would stall at Jonin when they may have become S rank and so on, it's not a future I like very much." I said honestly.
"I see. Lets move on to training then." he said dropping the subject.
I hum in agreement "Lay down or you'll fall over once we start. In addition you need to eat this nutrition pill and bite down on this so you don't break your teeth from the pain." I said as I took out a rubber gag and specially prepared food pill.
There was nothing kinky about this gag however but rather super serious as a shinobi's muscles were just that much stronger than a normal persons and if Kakashi were to clench his teeth as hard as he could because of the pain he'd shatter his teeth if there wasn't something to stop him from doing so, hence the rubber gag.-
The silver haired ninja understood this and stuffed the gag in his mouth as he laid flat on the ground.
"Keep the nutrient solutions coming when he runs out and after he wakes up he is to eat high protein and fatty foods only for the next three days." I commanded and the doctors wrote it down seriously.
Once that was done I flickered away with my sensei's office being my next destination. I didn't go straight into her office but reported my visit to the secretary who then told her. I was then quickly called up by her and entered her office properly.
"You smell like you have been sweating heavily and not bathed in days. What happened?" she asked concerned.
"I spent the last five days nonstop conditioning Kakashi's body to natural energy. He is currently in the hospital recovering. I assumed you'd want to be informed of this immediately which is why I am here." I said seriously.
"The hospital? What exactly did you do to him that would require that?" she asked both concerned and curious.
I saw no reason to lie to her and told her in detail how I forced Kakashi's body to forcibly adapt to natural energy.
"By the sage! You could have killed him!" she yelled angrily.
I shook my head "I always made sure to keep the damage above that threshold, he was at no risk of death or even crippling." I said calmly.