In Naruto Universe, time travel to become Naruto's sister

"[Ninja Fighting Training Lesson [-] - Illusion]" In an instant, the entire training field was spinning, and Sakura was dizzy in it, and she regained clarity after a while.Moving on, I saw Sasuke lying on the ground covered in blood.

After "Sasuke-kun" let out a mournful howl that resounded throughout the world, Sakura fell to the ground.

Kakashi looked at the unconscious Sakura and could only shake his head.

"This girl is so useless, she only thinks about Sasuke, and needs a lot of training to be effective in the team. Let's find Sasuke next and see what the last survivor of the Uchiha clan can do.

After walking for a few more minutes, he came to an open space and found Sasuke standing in the middle of the open space, with his hands inserted into the concealed weapon holsters.Kakashi quickly scanned around and found that there were many traps scattered in the open space.

Pretty good trap-making tricks.It may be difficult for an ordinary Chunin to do this.

"Sasuke-kun, it seems that Green Pool bought you a lot of preparation time."

Sasuke glanced at Kakashi's belt, saw that there were three bells hanging on it, and sneered.

"Sure enough, that idiot still failed. No matter how much chakra she has, she is still far behind the proud Uchiha clan. I am different from that idiot, Kakashi, wake up."

Of course, Kakashi had replaced the bell that Midoriike stole with a new one, and used it to trick his students.

"Well, to prove it, you'd have to get a bell from me, am I right?"

To be honest, Kakashi wasn't worried that Sasuke would steal his bell.Green Pool concealed his skills well and launched a surprise attack at the perfect moment.With Sasuke's character, when he was in school, he was always straightforward and never knew how to hide his strength, so Kakashi knew his ability very well.His strength is between Genin and Chunin, but considering that he has almost no actual combat experience, his strength should be around the high level of Genin.

With a wave of both hands, Sasuke threw the shuriken into the open space, activating multiple traps at the same time.Kakashi watched each shuriken trigger the trap perfectly, and Kakashi nodded in approval.

"Unsurprisingly, the Uchiha has always been unrivaled in the use of shuriken, and Sasuke seems to have inherited that talent."

Despite the plethora of weapons flying towards him, Kakashi's posture remains rather casual.Dozens of weapons hit him at the same time, but the moment he landed, his body turned into a log.

"It's a waste to activate all the traps at once. It's better to surprise one after another with surprise attacks. All the efforts will be wasted."

However, Sasuke seems to have anticipated Kakashi's use of substitute jutsu, and is already making seals for his next move.He took a deep breath, then spit out a fireball towards Kakashi's new location.

"[Fire Escape: The Art of the Great Fireball]"

"Well, if I hadn't fought that little monster called Green Pond a few minutes ago, I would have been impressed by Sasuke's Fire Escape technique. There are very few Genin who can easily perform Fire Escape Technique, let alone a yellow-haired boy who just graduated. (Naruto: Are you talking about me?)"

Kakashi quickly formed a seal and sank into the ground to avoid the fireball.

After the fireball subsided, Sasuke started looking around for Kakashi, but couldn't find it.

"Where is he hiding, damn it, I can't find his location."

Before Sasuke had time to think about the situation, two arms protruding from the ground grabbed his legs and pulled him directly to the ground, leaving only the neck up on the ground.

“[Ninja Fighting Training Lesson [-] - Ninjutsu]”

"【Earth Dungeon: The Art of Headhunting】"

"Well, it seems that Sasuke's strength is quite good, but it's not enough."

Before Sasuke could say anything, Kakashi left to find Naruto.

Is it a bad idea to choose Naruto for the last one, forget it, let's see how his strength is.

Moments later, he reached another clearing, this time with Naruto standing inside.To Kakashi's surprise, he didn't spot a single trap.

"What trap did he not prepare? No, it shouldn't be possible. My gut tells me there's something wrong with the whole clearing.

"Hello, Kakashi-sensei..."

Naruto paused for a moment, glanced at Kakashi's belt, and checked the bell.

"...Since sister got the new bell, did you take it out again?"

Kakashi and Naruto looked at each other for a moment, then shook their heads.

"It seems that you have great trust in your sister's strength, without any suspicion or jealousy, am I right?"

Kakashi took off one of the bells and put it in his pocket.

"Yes, she got it. However, she also told me that you are the one who figured out the purpose of the exam, so why do you come here alone to fight me?"

Naruto could only give Kakashi a wry smile as an answer.

"Sasuke said he didn't need help from someone like me, and Sakura only cared about Sasuke from the beginning. I'm sorry, Kakashi-sensei, I also have my own pride. I asked the two of them for cooperation, and they both rejected my request, so instead of asking to continue to embarrass myself, I might as well do it myself."

Kakashi nodded in agreement.Working with someone who doesn't like you but wants to cooperate is a completely different thing than working with someone who doesn't like you and doesn't want to cooperate.

"Well, Kakashi-sensei, I wonder if you can keep a secret for me?"

Although he found the question a little strange, he decided to answer it truthfully.

"It depends on who you want me to keep this a secret from."

"Everyone except Hokage."

Kakashi thought about it, but agreed.As long as Hokage is allowed to know about it, it will be fine.

"Okay, I agree, you can tell me..."

Kakashi was shocked and speechless after feeling a strong and suppressed chakra from Naruto.

"You must be joking."

Kakashi wanted to cry when he saw everything in front of him.Naruto's nails got bigger and bigger, his facial features became more ferocious, and his eyes became red.A red chakra tail appeared, while his body was covered with a red bubbling chakra cloak.

"Hey, Mr. Kakashi, what do you think of my secret? By the way, don't worry about Chakra leaking and alarming the village. I used the time my sister bought me to set up a sealing array to prevent Chakra from leaking out. Now, how about we have some fun together?
Seeing the familiar smile on Naruto's face, Kakashi could only accept his fate.

"Four generations, have you seen that? Both of your children are monsters. One is more abnormal than the other."