The Island turtle

"Let's go to this island, but I will handle any fights and ninja's we meet on the island turtle" - Clan head (Murakumo)

Then the Clan head (Murakumo) and Katagishi go on a boat and after two hours they see the giant island turtle. And then I giant squid appears from the water, but the Clan head (Murakumo) uses Kokuangyo no jutsu (Bringer-of-darkness technique A-rank) and just avoids the giant squid and continues to the island turtle. After getting really close to the island turtle, the boat seemed to not get any closer and so the Clan head (Murakumo) uses genjutsu kai, but there was no effect and so he thinks there is a barrier.

So the Clan head (Murakumo) uses Fūton: Shinkū Taikyoku (Wind Release: Vacuum Great Sphere B-rank), then a giant crack appears where the jutsu hit and almost instantly repaired itself.

"It seems that this barrier is too strong, I will have to use an A-rank jutsu just to let you in and I will not be able to come in as well. But you should be fine after all you had six months of training on that island." - Clan head (Murakumo)

Then the Clan head (Murakumo) uses Kaze no Yaiba (Blade of wind A-rank) and then throws it towards the barrier and Katagishi jumps into the crack and uses Fūton: Reppūshō (Wind Style: Gale Palm C-rank).

'Finally, I am on the island turtle and I can get rid of my second personality. But I better hurry up before some animals or ninja find me.' - Katagishi

Then a giant ape shows up and is about to attack Katagishi. So he jumps backward and throws three senbon and uses Ototon: Akuma Senbon (Sound Release: Demon Senbon C-rank). The giant ape instantly stops moving and Katagishi realizes that the monster may be strong physically, but their mind is still the same as normal chakra animals. Katagishi runs to where he believes the waterfall of truth is based on what the manga/anime showed, but he could not remember because it has been four and a half years since he reincarnated.

After an hour Katagishi encountered two giant bears and so he threw three senbon and then threw another three with Ototon: Akuma Senbon (Sound Release: Demon Senbon C-rank.) And then Katagishi sees a pond with a small piece of land in the middle and a waterfall in front of it, Katagishi instantly recognizes that this is the waterfall of truth. So he regains so of his chakra and uses Magen: Kokoni Arazu no Jutsu (Demonic Illusion: False surroundings technique C-rank) so that no animals attack him when he is meditating.

Then Katagishi goes into the middle island and starts to meditate. Katagishi sees fog start to surround him and a Katagishi with red and black eyes come out of the waterfall.

"So you must be the darkness inside of me or my second personality." - Katagishi

"Yes, I am your inner-self the true you. The one behind the mask you put on." - Inner katagishi

"So what is it that I am hiding." - Katagishi

"You do not belong to this world, are the people living in this world even important, they are just characters. The only reason you care to pretend is so that your future knowledge still workers and that you are too weak and young." - Inner Katagishi

"No, I am now a part of this world, my parents truly care for me unlike my other parents from my original planet." - Katagishi

"But if you told them you are not from this world would they still love you?" - Inner Katagishi

"No, I was in this body before birth, so I am truly their son." - Katagishi

"But what would you do if this world was fake." - Inner Katagishi

"If this world is fake, the me in this world is fake so the world is real to me. So I accept that this world may be fake but it is real to me." - Katagishi

"Then what will you do with me cast me aside and doubt everything I say." - Inner Katagishi

"No, just like you said you are the real me, without you, I would just be an actor in front of everyone else. I will take you in and let us truly become one just like naruto." - Katagishi

Then Katagishi and the Inner Katagishi walk into each other and the Inner Katagishi disappears into Katagishi. After that, the fog surrounding Katagishi disappears and he knows that he is no longer in his mind. Then Katagishi disabled his Magen: Kokoni Arazu no Jutsu (Demonic Illusion: False surroundings technique C-rank). After this Katagishi walks behind the waterfall and goes into the chamber behind the statue of the eight tails. Katagishi decides to practice for a month in the chakra isolation chamber and go into the chamber behind the second tail statue head when he wants to test out some ninjutsu.

After this month of training, Katagishi feels that his ninjutsu has caught up to his taijutsu. This month of training let Katagishi develop the Futon: Kaze Senbon (Wind Release: Wind Senbon D-rank) which lets him make his chakra into wind senbon and Ototon: Bagu kanri (Sound Release: Bug Control C-rank) which lets Katagishi control bugs with genjutsu from using high pitch sounds. Then Katagishi snuck past any animals and ninja using Henge no Jutsu (Transformation Jutsu E-rank) and got to where the end of the island is, and called out to the Clan head (Murakumo), but there was no response

So Katagishi waits an hour and calls out again and then sees a boat approaching and sees Kaze no Yaiba (Blade of wind A-rank) coming at him and so he casts Fūton: Reppūshō (Wind Style: Gale Palm) to make the crack large enough that he can get out. After the jutsus make a large enough crack Katagishi jumps onto the water and walks to the boat.

"What were you doing there! It has been four months since you went onto the island turtle. We have to go back to the village in one month to make it in time for the academy." - Clan head (Murakumo)