Danzo starts off by weaving hand signs

Danzo: Wind Style: Vacuum Blast!

Danzo uses the wind as he blows towards the ground causing it to crumble and parts of the Anbu hideout to fall down to create rubble

Y/n: Where in the world is this fool.

Danzo puts wind on shuriken and starts to throw them

Y/n sees that a shuriken with wind around it is coming towards him as he backflips to dodge the shuriken

Y/n: More may be coming...

Y/n quickly turns his eyes and sees that another one is coming straight towards him

Y/n: Kurama

Kurama: Yeah!

Y/n's arm has nine tails chakra on it as Y/n grabs the shuriken and adds some of his chakra to it making it way stronger as he throws it back at Danzo

Danzo: What the!?

Y/n dashes forward still with the nine tails chakra claw as he slashes at Danzo yet again causing him to bleed out

Danzo: It's useless Y/n.

Y/n turns to see Danzo staring at him again when he thought that he had killed him yet again

Y/n: Let me ask you something Danzo.

Y/n puts his hands together as he looks at Danzo

Y/n: What is...your greatest fear.

Crows start to form from Y/n as the crows go behind Danzo as he turns around in fear to see Itachi standing there

Danzo: Itachi Uchiha...

Y/n starts to laugh maniacally as Danzo turns to look at him

Danzo: What is so funny!?

Y/n: I have become. Your greatest fear.

Danzo looks at Y/n scared as he sees a bit of Itachi in Y/n

Danzo: I-it can't be! N-no!

Danzo gets scared as he bites his finger and decides to do the summoning jutsu

Danzo: Summoning Jutsu!

A large elephant appears causing the root Anbu hideout to start crumbling.

Y/n: This is not really the best of situations is it.

The elephant opens its mouth as it tries to suck everything in

Y/n starts to realise that he is being sucked into the mouth of the elephant

Y/n: Odama Rasengan!

Y/n creates a massive rasengan as it hits the elephant square on allowing him to now deal with Danzo who had tried to sneak up on him while the elephant was trying to suck him in

Y/n: Earth style: Fist Rock Technique

Y/n creates a giant fist with the rock as he turns around and decks Danzo in the side sending him flying through the destroyed root Anbu base

Y/n: I understand your jutsu now...I read about it in some books. It's the izanagi isn't it

Danzo was in shock

Danzo: You know what it is?

Y/n: Of course I would. But now I know how to really take you down

Y/n rushes towards Danzo as he slashes him with his sword causing him to die yet again but Izanagi brings him back to life.

He has two sharingans left

Y/n: I have another question even though I'm not a Uchiha. Why kill all of those Uchiha just to get all of those sharingan in that arm of yours.

Danzo: That's something I can't tell you Y/n.

Y/n: Fine then.

Y/n coats lighting in his sword as Danzo coats his with wind

Y/n: I guess I'll pry it out of you.

Y/n dashes towards Danzo as Danzo does the same causing the two of them to clash and stabbing each other in the process

Danzo: You are dead Y/n. That means now I can freely manipulate Naruto without any interference

Y/n laughs as he smiles at Danzo

Y/n: Oh please. I'm not dying...you are the one who is going to be dead.

Y/n takes his sword out of Danzo as Danzo tries to use Izanagi but realises...he has no sharingan left

Danzo: N-no! What!

Danzo falls down to the ground as he starts to hold his arm

Y/n: Don't you dare underestimate my power.

Danzo realises that his life might actually be coming to an end as he starts to run away from Y/n.

Y/n: Oh don't try and run away from me.

Y/n uses a genjutsu as crow appear from him and appears right next to Danzo. It was a mix between Itachi and Y/n

Y/n: Embrace your fear.

Danzo gets very very scared as he goes to his last resort

Y/n: So you have another sharingan as well.

Y/n takes out his sword as he throws it right at Danzo as it hits him right in the chest and pins him to the wall

Y/n: I guess now I can beat all of the answers out of you.

Danzo looks at Y/n as he sees his very fear

Danzo: What do you want to know!? I'll tell you everything you want to know!

Y/n points at Danzo's eye

Y/n: Who's eye is that?

Danzo: I-I-ts Shisui Uchiha's eye! I took it from him before the coup that Itachi was going to do

Y/n: Ah perfect.

Y/n turns around but then turns back again to look at Danzo

Y/n: I guess it's going to be mine then.

Y/n rips out the sharingan eye of Danzo as he puts it into his eye that was scarred by Orochimaru

Danzo: W-what have you done!?

Y/n feels that the eye has changed a bit as Danzo looks at the eye in fear

Danzo: It changed from a sharingan to a Rinnegan!? But how was it able to do that!?

Kurama smiles

Kurama: This just further shows how linked father and Y/n are if he is able tot do something like that

Y/n: Oh well. I guess you enjoy your time in this place Danzo. I am out of here.

Y/n leaves a pinned Danzo to the wall of the destroyed root Anbu hideout as he walks away becoming the very thing that Danzo fears.

Thanks for reading! And if you guys probably didn't know, Y/n is the reincarnation of Hagoromo which is why it changed from a sharingan to a rinnegan