(At the Island of death, one day after the fight)
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Kemono tied Ibuki on a stone post facing the beauty of the ocean from the pinnacle of the Island. But amidst the beauty of nature in front of him he was being tortured by his dad.

Ibuki: Uughhh dad unchained me please.. I am sorry.  I  promise I'd be stronger than before. Hit me anywhere but   just let me out of this Island. I hate it here.

Kemono: You're a disappointment my son. How could you shame me with that match against Haruto? That's the first time you didn't win.

Ibuki: But I didn't lose dad. It was a draw.

He whipped his chest many times and his body bled.

Kemono: A draw was never good enough. You are a Kiyotaka, remember that!

Ibuki: I don't want to be Ibuki Kiyotaka. He is harsh and a monster. He is just a weapon. He is not human. I want to be a Ibuki Kuroshi. I want to be human dad.

He slapped his face left and right and pulled his hair.

Kemono: You are my weapon Ibuki. You stay on this Island of Death until I am done experiments with you. Until I draw out the real Kiyotaka in you. Until you get yourself sober from those idiotic feelings. 

Ibuki spat out his blood and spoke weakly.

Ibuki: Dad, it was just because I was hallucinating from the poison. I am sorry.

Kemono was manic as he had anger management problem. He cut down all the trees surrounding them and killed every living animals within his reach.

Kemono: Damn it!!! I didn't know the level 6 test could fail with just a poison flower. I was confident all your emotions were gone after you killed a thousand from the level 6 test. Now I know level six can only hide your feelings and give you temporary strength.  That poison Haruto gave you can draw out what was hidden within you. It showed me that you still have a weakness and that's not acceptable.

Ibuki: What are you planning to do with me again dad?

Kemono: I am subjecting you to more tests and experiments in this island  until all your weaknesses are gone for real. Not just  hidden.

Ibuki: But dad, some people said feelings like hatred and love can be a strength.

Kemono: Only fools say that. It's not proven in science.  Trust your dad son. I only want what's best for you.  We'll be scientific about it son.  Today starts your training at level 7. You'll remain tied on that post until you get yourself unchained. And you will be imprisoned alone in this island with the wild beasts. Die here or  survive like those beasts. 

Ibuki: Until when dad?

Kemono: Stay here for a year.  I cast a sealing jutsu on this island so no one could get in and out except through a boat that I send. I will send that escape boat good for only one person. Kill the one the rides it if you want to go back home.

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(At the infirmary, one week after the fight)
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Sarada POV

I wake up and my head aches like my hairs were pull one be one.  My heart ached like it  was torn apart or broken into pieces.

I remembered I  was hit by a rasengan right through my heart. I was supposed to be dead had I not kamui myself away from him immediately.  Still he got me for a second that made the kamui unsuccessful. I was back on the arena after a few seconds only. 

I was  wounded but not deep enough to kill me. I looked at my chest and it left a mark. I know its  wounds would make an awful scar.

That boy who tried to kill my brother. He tried to kill me too. This was not the first time he did it to me.

Before his rasengan landed on me, flashes of memories came back to my mind. I remembered with the same rasengan he tried to hit my heart but someone I called dad saved me. I remembered he died on top of me.

That boy... He killed my dad. 
He is a predator.  He is going to kill me.  But why?

I am confused. Who he is in my life. I collect all my memories of him.  There's  only three, first he's named Itachi. He thrust me with his sword and he tried to hit me with rasengan but my dad died for my sake. With those memories, I hate him so much.

Then I remembered a deep voice that echoed my head saying I must kill Itachi.

That boy named Itachi... I have to kill him before he kills me. 

I need to  get my memories back. I want to plan this smart. I can't afford to just attack like an idiot without a plan. I saw how he fought. He is a stronger than my brother.

The snake man entered with the girl Gaburieru checking my vitals.

Orochimaru: Good thing you're now awake Sarada. You've been asleep for a week.

Sarada: I guess I can't die yet until I murder Itachi.

Orochimaru: I love your determination.

Sarada: By the way, how is my brother?

Orochimaru: He is okay. Right now he is under level one experimental level at the white room. You saved him after all, so he is fine. And you as well can to leave the infirmary tomorrow.

Sarada: Uhm... how about him? That boy my brother fought with.. How is he? 

I got to know about him.

Orochimaru: He'll be stronger than before. He is away right now to complete his level 7 training and experiment. Don't worry about him. Did you miss your boyfriend already?

I choke upon his question.

Sarada: W-what worry? B-boyfriend?

I suddenly remembered something like I kissed him. Then I remembered we laughed and ran together. I was tormented at the thought of me laughing happily with him when all I felt as of the moment is hatred.

Was he really my boyfriend? Why would he kill me? But didn't Gaburieru told me he's her boyfriend? 

I was confused at the memories that came to my mind. So I called out for Gaburieru to  stay before she could leave.

Sarada: Senpai. Didn't you say my brother was fighting with your boyfriend? Why is Orochimaru calling him my boyfriend?

Gaburieru: Hahahaha.. he was my ex-boyfriend but he will be my future husband.  I will see to it that it happens.

I felt threatened by the way she smiled with a sinister look like she ready to inject the thing she's holding on me.

Gaburieru: I'm sorry for you that you lost your memory because of the poison test, Sarada. To be honest, that's the reason why I am stucked with level four. In my batch, the poison test is level 5 and I heard most of the survivors either lost their  memories  or got them mixed up. At level 6 test, that's when you lose your feelings. I don't want to take both tests. I'd rather be bullied for being stucked at level 4 and be made a slave in the lab than lose my memories and feelings for my boyfriend.  That's how I  love him. I just couldn't kill this love, Sarada. I'd nurture it until I get him back.

She was so determined and she got my respect. I just don't understand why someone would  be so passionate about love that I felt a bit jealous and was idiotic with my response.

Sarada: That's uhm, but Orochimaru said that he.. he.. is my boyfriend. 

Gaburieru: Hahahaha...No he is not! He is just messing with your memories. He doesn't have feelings at all.

Sarada: B-but I  remember something like we kissed.

Gaburieru: Oh if you did, then you're a fling then. He must have just flirted with you. You know how boys are.  

She left the room after she smiled at me.

I was appalled. I don't know why but I felt depressed by what she said.

Was it why I wanted to kill him? Because I was a fling? Sucks am I that stupid to fall into a fling?

Damn it. Is she telling the truth or like that snake, she's also messing up with my memory.

I wanted to ask someone but I was left alone in the room now. I feel like I am going crazy with the mixed emotions I had and all the mixed up memories I had been recalling. So I laughed out bitterly. I was tormented with voices that kept echoing my head telling me to  kill. I was losing sanity for a while then I gather myself after someone slapped me hard on the face. I was thankful he did that.

Sarada: Who are you?

Kuro: I am Kuro Azumi. I heard you were crying and laughing like crazy so I slapped you. By the way I came to warn you to stay away from my friend, your love is making him weak. 

His friend? I remembered Kuro was behind him before he hit me with the rasengan. His friend is telling me that I loved him. But he killed my dad.

Sarada: Thank you Kuro. Just leave me now. I don't want to have anything to do about your friend anymore.  All I  want to do is avenge my dad. If it is true that I  loved him, then I  just have to kill this love.

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Timeskip after one year

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Third party POV

Kemono: Sarada Uchiha... You've graduated. You are the first to accomplish level 1 to 6 in a year only.

He clapped his hands as he saw how fast she had knocked out a thousand. Everyone lying on the ground were almost lifeless.

Sarada smirked and wiped the dripping blood from her Katana. Those blood are from the soldiers she just fought with. It was her graduation for level six.

She had to fight a thousand within an hour to pass the graduation test. But she did it in less than 30 minutes.

Kemono: Why didn't you kill them all Sarada? Everyone who graduated level 6 killed all of the soldiers. That's how they lose their feelings.

Sarada: Hn. I let them live on a whim. Don't worry Mr. Kiyotaka, I will kill. But only one person...  Itachi.

Kemono: Now then accept my graduation gift for you Sarada. I cast a jutsu on that boat ride. It is now headed to where my son Itachi is.

Sarada smiled for the first time in a year and jumps on the boat alone.

Sarada: Thanks for the gift sir.

She said with nonchalance and thought. His son. hmpt. He knows I'm up to killing his son Itachi. But he always tell me bits of information about him to annoy me every time. I know your plan Mr. Kiyotaka, you want us to kill each other. Good then brace yourself when I return with his head.

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Shana: Why would you lie to Sarada? You messed up her past and allow her to think that her memory was right?  Ibuki is not Itachi. 

Kemono: That's why she is my weapon, like all of the kids in the white room. I can just messed up with their memories and use them for whatever purpose I like. 

Shana: What if she could actually kill my Ibuki?

Kemono: Shana, trust me. She can't. I have faith in my son. After a year in that island, I know he is now a Kiyotaka. I sent Sarada to that Island alone to where Ibuki is because today is his graduation for level 7.

Shana: What do you mean? Why would you send her there when you said you allow me to marry Ibuki. I am his fiancee now. I should be the one there for him on his graduation.

Kemono: I sent her because she is the final test. The only way for him to come back is to ride on that boat which could carry only one. If Ibuki can kill her now. Then he will pass level 7 and come back home to us. If he can't, then he failed. 

Shana: But what if they both decide to live happily on that island?

Kemono: That island is not a paradise. It is filled with beasts. And it is a ticking island. I cast a jutsu for it to explode within a week from now. If what you say is true they will be buried on that island of death.