Naruto smiled at both Kakashi and Kurenai: Kakashi do you remember this?
Naruto created Chidori in the right hand and showed it to Kakashi: I will ask again Sharingan or a person life
Kakashi: Wait, naruto we can talk about this
Naruto once again disappeared and the next moment his hand went through the chest of Amell the member of team 8. next he pulled out his hand and pushed it on the ground killing all the bugs on it Which Shiro has been placing since earlier when Naruto started talking.
Naruto looked at him and said: Don't worry you and your bugs will be next.
Kakashi: No Wait, naruto, I will take you to your godfather.
Naruto: I already met that pervert don't worry after that Old man dies I will make sure anyone who interferes in making his grandson a beggar will die.
Naruto slowly starts walking towards Shiro while having Chidori in his hand: Don't worry it will not be painful
Naruto suddenly disappeared and stabs Akamaru separating one of its legs.
Kiba: NOOO...
Naruto: Do you think I don't know what you're trying to do Kakashi? What was the name of the dog? Pakku or something right who you sent to call for reinforcements. Don't worry we both know I can take your eyes right now but I won't, I will wait for you to each time lead a team outside Konoha and then kill them all in front of you. Making sure you know what it means to live in hell every day. And you baby Sasuke make sure you deliver my message to Itachi I will save my largest poop for him to eat. Hahahaha.
Kyuubi: Why do you need to act crazy again?
Naruto: Because if people think you want to burn the world and you burn down the world no one truly cares. You see Kurama people are stupid they worship the powerful but also fear them. It's just a cycle of never-ending hate which goes on and on in a circle. Well anyway, we got what we needed let's go back.
With the reverse summoning Jutsu, Naruto went into the land of foxes and started by studying the sword and it's properties first. the sword can reproduce itself by taking iron from the blood of its victim.
Naruto researched various properties and methods of the inner workings of the sword and started creating nanotech using it.
Using nano teach created by the sword Naruto went into Hibernation for 5 months during which his DNA sequence modified and changed into the properties of Senju Uchiha Uzumaki and Hyuga clan. turning his hair dark red while changing his eye color to dark purple nano teach also enhanced his body structure making him about 6'1 like his previous life and turned Him into a completely different man. His chakra reverse too went off the marks almost matching 6 tail while his talent grade also upgraded making it easier for him to create and be compatible with new elements such as darkness and light.
Naruto sent one of his foxes to be on the lookout for the latest news coming out of Konoha. One of the foxes informed him that Chunin exams will be held in Konoha after 8 months, Naruto knowing about the Orochimaru's attack started hatching a plan to obtain Shisui's Mangekyō Sharingan from Danzo so he started training in Nine tail chakra mode, due to changes made using nanotech on its body and modification in his bloodline, His body could take up to 5 tails of nine tail chakra, for insurance Naruto also started practicing wooden Jutsu which he can use as a distractions and escape.
With everything in place, naruto practice hard throughout the 8 months reaching the strength of lower-level Kage in normal mode whereas capable of fighting Higher if he uses both nine tail chakra and Senjutsu.
With the change in His appearance through modification, Naruto simply walked in Konoha through the front gate possing as one of the other side villagers coming to see Chunin exam finals.
Naruto saw that Sasuke has changed and now caring a dead look in his eyes, not arrogance like he usually does, With the death of Sakura and Amell dying while and Kiba losing his partner leading team 7 and 8 appears to be merged now consisting of Sasuke, Hinata, and Shiro with Kakashi and Kurenai as their leader. Naruto also observed Hokage looking bit older than the last time he saw him seated near him the Kazekage Naruto noticing that the fights are about to begin got up and went to the bathroom leaving a clone in place, geared up Senjutsu to find the location of Danzo and sensed him inside northern part of the village rushing to his location Naruto in a flash pulled two short knives with seal marks of Flying thunder God technique on them summoned 10 shadow clone each with knives in their hand. Out of the shadow out of nowhere Naruto along with his clone throw knives at Danzo and his escort team of 2, as soon as the knifes got close, 2 clones disappeared and embedded Rasengan into the two guards, while real naruto flashed in front of Danzo who being a Kage level ninja himself, blocked Naruto hand which was about to plant a punch in his stomach.
After blocking the attack, Danzo jumped backward and created some distance and saw his attacker.
A tall about 6' men with dark purple eyes standing near the two now dead escort root member.
Naruto smiled at Danzo: Do you remember me Danzo sama?
Danzo: Who are you boy?
Naruto: I'm the monster you created don't you remember? You told the whole village how I'm the reincarnation of the big bad fox and I don't deserve to live
Danzo: You're Naruto??? Why are you here?
Naruto: I'm here to collect the Sharingan you stole, see I don't have parents but even I know it's bad to steal from others.
Danzo started thinking about how does Naruto knows about the sharingan but decided to put his thoughts aside for now and focused on Naruto: You want Sharingan soo much so here you can have it?
With a quick motion of the hand, Danzo tried to remove the bandage covering his Mangekyō Sharingan but a hand stopped midway, Danzo tried to move it using his complete force but wasn't able too
Naruto: You see last time I clashed with a team from Konoha they had a member from Aburame clan, I liked their use to bugs to attack the enemy without them Knowing. So I made some bugs of my own, some of which are currently inside you controlling your everything. Well anyway, I will be taking that Sharingan now.
Naruto comes forth and pulled out the Sharingan from his right eyes after which Naruto punched and blinded the other eye of Danzo.
Naruto smiled and said: Well I need you to do one last thing now
Danzo's fake arm with first Hokage cells started going out of control and started growing a Huge tree, Naruto laughed loudly waved Danzo bye and disappeared using the seal he had created earlier went back to the arena in a flash. Taking his original seat as the observer He waited for the attack to start.
Matches were boring some tried to overpower the other while some just used basics to outwit the other. Naruto observed the formation around the Hokage first and then started calculating ways he can interpret the fight and cash out big, One of the ways he could think was that to kill one of the sound 4 giving no opportunity for the barrier to be created but quickly dismissed it thinking that it might lead the Hokage coming out alive. Thus after thinking a lot, he finalizes that at first he will tag one of the sound four then observe the fight while leaving a seal knife inside the barrier thus creating the opportunity to intervene can cash out.
Naruto nodded and after creating 5 clones to go and plant seals started acting like a normal viewer and started to bet on the matches.