Two Days later…
"Old man Hey old man wake up let's go train some more, Sakumo-sama is arriving today, isn't he?
I want to impress him with taijutsu today. Wake up and teach me an S-rank move."
Ryuu, you can't learn an S rank move already. You just started taijutsu 2 days ago." he spoke with a stern and grumpy voice as he had just woken up.
"But you said I was progressing much faster than anyone you've taught.
And wouldn't it be better for you to have powerful ninjas as soon as possible, I made a promise to be the most powerful shinobi and how can I do that with basic ninjutsu, and you can't always be there to protect everyone you know."
Ryuu spoke for 15 minutes, giving the Hokage reasons he should learn an S-rank technique.
Sigh
The Hokage sighed as he stretched.
"Fine, I will teach you a new technique in taijutsu, it won't be an S rank but it will shock Sakumo and he will be impressed, as for S rank taijutsu moves you will need to train a lot harder and awaken your chakra first before you learn any of them, with that being said go to the training ground give me 500 laps before I reach there."
Ryuu gave him a salute and sprinted to the training ground.
'I would be lying if I said I didn't miss the days my body would allow me to move like that.' The Hokage said to himself.
After a while, the Hokage was done and Ryuu had finished his laps; he was sweating and panting, then he saw the Hokage.
"Sarutobi-sensei!
I'm done, come teach me new jutsu!!"
'I looked back at where he was and he disappeared. He just appeared out of nowhere as I looked behind me I jumped back into my stance because I was startled.'
"Ahahaha!"
"You need to work on your reactions and reflexes," he said as he was laughing.
"Hey, it's not that funny, now are you gonna teach me a new jutsu or not?"
Ryuu looked away and folded his hands stubbornly.
The Hokage smiled seeing Ryuu's stubbornness.
"Ryuu, be patient. It's not as easy as it sounds. This technique requires a lot of patience and balance. Now, I will show this move once before I do.
I would like to explain that this move is better to be used at the beginning of a fight or when near your opponent.
Because of its speed, your opponent should have no time to react.
It will deal a lot of damage if you perform perfectly.
Now watch carefully." Ryuu nodded.
"Earth-style mud wall!"
He made a wall bigger than the last one.
Ryuu sat still, watching his every movement.
He moved back a couple of steps and got into a taijutsu stance; he took off running and jumped in the air, he led with his right foot and left foot leaning back.
"Boom!"
His foot hit the wall, and it broke into pieces of rubble and dust.
'I was so amazed at the move, thinking of landing that move on an enemy just made me excited and ready to learn this technique.'
"Sarutobi-sensei, I wanna try this move. Please make another wall for me."
Ryuu ran towards him full of energy, forgetting he had just run 500 laps around the Hokage estate.
"Huh? are you crazy?!
Ryuu, trying that move on a hard object such as the wall is insanity, if it's your first time doing it first, you need to be able to do it without a target.
Practice the movements and generate enough power for your feet, because if you don't use enough power, you will end up with a broken leg.
So practice that for a while. I'll be back later, I have some work to do, but in the meantime, you continue to work on your form.
I will check in on you to see your progress."
Sigh.
"And just like that, I'm alone again Sarutobi-sensei left me this jutsu trusting that I won't fail him.
With that, I have to complete this task, now I just have to remember the technique and movement."
Ryuu started with a run and as he picked up the pace, he took off and jumped, he then led with my right foot and did the kick.
He was too slow and didn't carry enough momentum, so he fell on his butt.
He tried it again and again and again for almost two hours.
I had made some progress.
'Sometimes I did it perfectly, but I would fail after doing it.
"Until I do it perfectly with no flaws, I won't stop trying."
He said to himself to encourage himself.
He continued doing it for another hour.
Then I finally did it consistently
"After all those hours, I finally perfected the Dynamic Entry."
Ryuu ran to the Hokage's office to tell him what he did.
"knock knock knock!"
"Come in."
Ryuu walked in with a smile on his face.
"Sarutobi-sensei, I finally perfected the jutsu. Come and take a look."
Ryuu was grasping the air, he had run all the way here after training but was excited.
'Could he have already done that move?'
The Hokage looked at him and nodded.
"very well then."
They took off to the training grounds.
'Just you wait, Sarutobi-sensei, I'll show you the results of my training and hard work.'
Ryuu entered his stance, his left arm was behind him and he stood tilting a little to the left side.
"Wait!"
"huh??" Ryuu looked at him confused and curious about what the Hokage wanted. "What's wrong, sensei? why did you stop me?"
"I want you to use that technique on me instead, if you've mastered that technique then it should be able to do some damage beside my defenses."
Ryuu nodded.
'Hmph, The Hokage doesn't know what's going to hit him.'
After that, they both took their stances.
'I launched at him with my full power and speed, I jumped into the air and lead the kick with my right foot.
"dynamic entry!" Ryuu landed his foot perfectly into his gut despite his arms trying to block it, after that he landed safely on the ground.
"Boom!"
The sound of Sarutobi-sensei landing on a nearby rock.
"Sensei!!!"
Ryuu ran to check on him.
"Are you ok?"
*Poof!* his body turned to white smoke. "A shadow clone?"
"Whew that was close, if that had landed on my real body it would have caused some real damage to me."
Ryuu heard a voice from above him.
'I looked up to see Sarutobi-sensei sitting on a tree holding the back of his head as he smiled.'
Ryuu frowned.
"Hey, you can't just do that to me. I thought you were hurt, you know.
Honestly, what kind of grown man does this to a kid?"
"Ahahahaha!" He laughed so hard it looked like he was about to fall off.
"Anyway, you have perfected Dynamic entry, all in one day too, your potential can give someone a nightmare.
Ryuu, after cleaning yourself up, meet me at my office immediately."
With that, he disappeared into thin air.
'I have to learn how to do that.'
He said to himself.
(Authors Note: edited on 05/29/2022)