Minami: This is bad news. The last time Ibuki was like this, his opponent died.

Taiyo: You're right. He doesn't know how to control himself when he is at beast mode. Sensei aren't you going to stop them.

Itachi: The sparring is supposed to test the limit of their abilities. It must continue Taiyo.

Ume: But Sarada might die.

Itachi: Then she's not worthy to be in this Academy.

Kugutsu: This is exciting to watch. I'm calling everyone from other classes to witness this fight and gather some bets.
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Sarada POV

Ibuki marked me as his target. Why is he so fixated at me? I don't want to draw attention to anyone like this. I just wanna murder Itachi, alone. Damn, if he's gonna be a hindrance to my goal then I have to eliminate him this early or if I can't, I have to make him my ally.

I see his curse mark emerging on his forehead. His marks are like those of uncle Jugo. That mark is like a trademark that he came from Orochimaru's lab.

Wait, could he be the ONE or one of them?  A product of Orochimaru's experiments. Is he the ultimate weapon that dad has been telling me about?  Or is he just one of the many weapons he has in his lab.

I was suddenly reminded of someone from Orochimaru's laboratory. That boy, that special boy.
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(childhood memories when she was four)

Sasuke: Sarada, I am going to talk to Orochimaru-sensei about something important. Just stay sitted here and don't go anywhere.

Sarada: Yes, dad.

Being curious, Sarada disobeyed Sasuke and walk around the building observing and taking note of everything she saw. She opened one of the rooms and saw a boy lying on his bed. 

Sarada: Hello, who are you?

Ibuki: My dad said not to tell anyone my name.

Sarada: I wonder why. It's not like you'll die if you tell me your name. 

She winked at him and giggles. Ibuki find her so innocent and cute so he also giggled with her.

(Sarada at 4 years old)

Ibuki: How about you?  What's your name? Why are you here? Who are you with? Do you also live here?

Sarada: Wait. Wait a minute. You got plenty of questions. Let's just play rock, papers and scissors. And whoever loses answers the question of the winner. Deal?

Ibuki: Deal. As long as we stick to no asking of names.

(Ibuki at five years old)

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They played for few minutes getting comfortable with each other. Taking turns asking questions and giggling. Until Sarada remembered her dad and bid farewell to him promising she'd come back. She went out of his room happy.

Then she saw a little girl probably older than her. She gave her a friendly smile and introduced herself.

Sarada: Hi. I'm Sarada. Are you also from here like my friend from that room over there?

Shana: I'm Shana. I live here. And you are not supposed to be here. This house is full of monsters and beasts like me. 

(Shana Katumi at five years old)
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Sarada: B-beast? B-but you look so pretty to be a beast.

Shana: This is our disguise we look like humans but in the end we will eat you alive. And that boy from the room you said is the ultimate beast here. He loves to play with his prey first before he eats them alive.

Sarada: You're kidding right? 

She asked innocently like any four year-old would. But then Shana's curse mark emerged starting on her forehead showing Sarada her angry face which was covered with the curse marks. She feared how she looked like ready to kill her so she ran quickly away from the girl.
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Timeskip
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Sasuke: Where have you been, Sarada?

Sarada: I'm sorry dad.  I met some kids there in the white room. But then he and the girl are monsters. 

Sasuke:  They're just children made to become beasts. Everything in this building are weapons made by Orochimaru-sensei. They will become monsters  and beasts. And there's one in the white room who is an ultimate weapon. 

Sarada: Dad, I am never coming back here. I don't like this place. I hate everyone here.

Sasuke carried him and they teleported away from that place.

Sarada: Dad. I am afraid of them. Will they kill me?

Sasuke: Sarada, in our world it's to kill or be killed. Don't fear them. They are just weapons. I will make you a soldier who wields and control those weapons.

Sarada: A soldier? And I wield them? What do you mean dad?

Sasuke: Remember uncle Jugo?

Sarada: Yes. I like him so much. 

Sasuke: He used to be Orochimaru's weapon. A cursed human being who can turn into beast.  But look at him now. He obeys everything I say like a pet. He is loyal to me. When he is beast mode, he can't control himself. But only I can control him.

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(Back to present)

Dad, today I will know if I indeed have become that soldier who can wield this weapon. Or just a victim of this predator. You trained me for this dad. 

I will fight him to gain control over him. Therefore I need to make him turn into full beast mode so he'll lose his human intelligence and then I could take him on as my weapon to wield.

I looked at him irked at me. As of now he is still 50% beast. His strength will be monstrous but he will reduce agility and his human intelligence will be down by half.

The challenge is how to do that not using my sharingan.. I have to fight him forgetting the Uchiha way.
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Ibuki thought, Sarada's been staring at me for a long time. Without any sign of fear. She must be calculating her moves.

Ibuki: I am going to let you taste what hell is Sarada. Now take this!

Ibuki throw the first strong punch and hit Sarada's chest. She flew few meters away from him.

Sarada thought: So this is his strength. My ribcage  cracked. If he is at full beast mode. He could break it.

She immediately healed herself using byakugou and fought back using taijutsu.

Using her quickness and agility, she moved low to the ground and spinning kick sweeping Ibuki  off his feet. He stood and smirked like it was nothing but before he could weave a hand sign to execute a ninjutsu she gave a flying jump kick straight to his face removing one of his tooth. He was annoyed seeing the blood gushed from his mouth.

Using enormous amount of chakra and with tremendous burst of power he approached her with a strong jab. 

Everyone who witnessed were afraid for her life.

Ume: How could she fight back with mere taijutsu sensei?

Itachi: It might be basic Ume but if her level is the same with Might Guy of the Leaf Village she can give Ibuki a hard time.

Sarada: He is stronger than me but I am faster.

Flying in the air, Sarada wasted no time feeling the pain he had inflicted her. She opened her own chakra channels and with her power and speed faster than Ibuki she  strikes him multiple times, causing the distinctive peacock fan to develop. He then fell back to the earth, covered in the strikes' aura. Before he could even recover, she continued to attack him again.

Taiyo: She's so fast that Ibuki can't even keep up with her speed.

Minami: She's keeping Ibuki busy with defending himself without a break..  He couldn't even execute his own ninjutsu.

Itachi: Ibuki is excellent in ninjutsu, kenjutsu and genjutsu but not so much with taijutsu. 

Kugutsu: Damn the bets got higher on Sarada this time. Students from other classes are cheering on her.

Ume: Her taijutsu is just crazy! I can't see clearly what's happening and where she's hitting Ibuki. I wished I have the byakugan.

Taiyo: Yeah. My byakugan allows me to see clearly her shots. She's using her feet to inflict outer pain disrupting his focus while she uses her hands with gentle fists hitting Ibuki at his chi-points at lightning speed. Ibuki's chi-points have been damaged. A few more and he'll die.

Itachi: A combination of strength and agility, Sarada is using the death touch technique.

Ume: He is killing Ibuki? No way!

Taiyo: No, wait. The chi-points she hits.. She's not killing him. It's like she's opening something that's within him. Like a seal opening.

Itachi: She's stimulating Ibuki to become a full blown beast.

Kugutsu: F**k it's dangerous! She'd make us all die if Ibuki break lose of this side of him.

Hitting the last chi-point, Sarada stopped and smiled at Ibuki. She is confident she had open the gate for Ibuki to become a full blown beast. While catching her breath she felt the victory.

You're mine Ibuki.

This time Ibuki felt the strong urge to kill Sarada. Like a beast eyeing on its prey. He doesn't like being at full blown beast mode where he can't control himself. But it's too late. His evil side has started taken hold of his body.

His strength is now double. He cannot feel the pain inflicted upon him earlier anymore. His reason is slowly leaving him. But he's trying to combat his own self.

At his last ounce of sanity he activated his cursed mangekyo sharingan. His normal red eyes had turned into black mangekyo sharingan.

Even if he's not an Uchiha, being infused with Madara's DNA, he developed the sharingan. But his is black because it was combined with a curse.

His chakra overflowed like fountain as he concentrated all his chakra on his hand forming a dragon like shape surrounding his fist. Then he aimed at Sarada heart.

Sarada's POV
He did not succumb immediately to his beast mode. He is trying to control himself. And now he has aimed at my heart! 

Damn I miscalculated. I am late for a few seconds. I cannot evade from this attack anymore. Even if I use my sharingan and exhaust all my abilities, I am too late. His fist will definitely touch my heart. I'd surely die today.

I am sorry dad. I failed you. I failed my mission to kill Itachi. And I am dying at the hand of this weapon you wanted me to wield.

My life, I know it would be short. But I at least would have wanted to accomplish my goal. I just wanted to protect you from the pain of killing your own brother dad. But I can't. I am done in 3 seconds.

I closed my eyes accepting my demise in 1, 2, 3... I fell off the ground from the impact of his fist. I felt heavy all over my body like a boulder crushed me...But my heart is still beating. 

my...
heart...
beats......

I am not dead! But why?

I opened my eyes with joy that I am still alive. But I saw Itachi smiling on top of me. He smiled restraining the gush of his own  blood coming out from his mouth.

Now I get it. He covered me and saved me from sure death. And now he is dying on top of me. I felt deep sorrow like I was mourning for losing him.

But why? Shouldn't I be happy he's dying? I am supposed to kill him anyway. Shouldn't I be thankful to Ibuki for killing him? Didn't I want to control Ibuki so he could help me kill Itachi? Now he's dying. It's just perfect. Ibuki indeed turned out to be a weapon who kills Itachi.

Yet I am not happy.  I looked at Itachi confused. I cannot seem to say anything. Questions just flooded my mind.

Why would he save me? Why would he save a wretched murderer like me? Why?

Itachi talked with a trembling and weak voice.

Itachi: D-dad's su-sup-posed t-to pr-pro-tect t-their k-kids r-right?

He smiled and poked my forehead before his heart finally stopped.

I was stunned. I fought forgetting I am an Uchiha. But then he reminded me that I am. As he poked my forehead, he was like saying he loves me...  in the Uchiha way.

My purpose has gone with Itachi's death. But I just feel a strong urge to avenge the death of an Uchiha.

I stood up and face Ibuki with too much anger in my heart. I activated my sharingan and stood at fighting stance.

Ibuki....taste my anger the Uchiha way!