Even after reading it thoroughly, Akari knew that it will be very difficult to perform.
After memorizing it he closes the scroll and gave it back to Sandai.
Sandait puts aside the scroll then stands up.
He takes out a fish from the tank and then takes the test tube which he was observing before.
He puts the liquid into a syringe and then injects it into the fish.
"This test tube has about 20 doses of this poison, so practice this technique regularly with it.
Now, I will perform it for your understanding one time. So, be attentive."
Akari nods at him.
Sandai then places his hands on the fish and says "Come, feel this fish's chakra. You will be able to understand the irregularities in it."
Akari places his hands on the fish and feels that the fish's chakra is very much disturbed right now. It's body is also slowly becoming black.
"Yes, Sensei I can feel it's chakra disturbances."
"Good, now observe me doing the other processes."
Sandai then uses chakra scalpel jutsu to make an incision on the afflicted part.
He then takes a medicinal liquid from the desk which is in a bowl and also take an extra bowl.
He then pushes a large volume of the medicinal fluid through the incision.
The fluid then draws the poison out of the affected part and serves as a medium through which the poison is suspended from the fish's body.
He does this process a few more times then stops doing it.
"Ok, now you practice it like this. I will teach you how to make an antidote later." Sandai said and then goes to do his work.
After that Akari repeats the process but even with his chakra control this process is very hard to do.
He needs full concentration otherwise if he leaves more Poison in the fish's body to be cured by the antidote then it will die very quickly before he can make it
He proceeds to do it continuously, and after two hours he is able to do it.
But he knows that for different animals the difficulties will be different.
That's why he started to practice it on it other animals also.
He also injects poison in different places each times to understand which place is more vulnerable to poison and which is less.
This also increases his efficiency.
After finishing up the test tube he takes another test tube from Sandai to practice it.
This also improves his chakra control which has stagnated.
And with the help of practicing medical Ninjutsu his nature transformation of water element has also been achieved.
He is now practicing other two elements earth and lightening nature transformation.
And he also plans to practice the nature transformation of Wind and Fire element after completing these.
In the Anime, it didn't say anywhere that the Nature Transformation of other elements can not be achieved.
Even he thinks that Third Hogake has achieved the Nature Transformation of all the elements that's why he is so proficient in all the elements.
After completing his practice, he went to his room and sleeps and waits for his future.