"Later, Itsuho. It has some kind of cursed mark. Though I know your sealing techniques are good. But I don't think it is a good idea to touch it, and what if the curse might affect you." Then he pulled out his other eye while he tried to lecture his own sister, who is now having a panic attack.
"You!!!!" Itsuho was shocked as her eyes widened at the sight of her older brother pulling out his other eye, terrified, knowing what he meant by the gesture, abandoning his own identity as an Uchiha shinobi.
"I was planning to use my right eye ability to stop the Uchiha coup. Unfortunately, now it seems there is no way to stop it." Shisui said in exhaustion, both physically and mentally, as he turn head like he is looking at them.
"If internal warfare breaks out in the Leaf, the neighbouring countries will invade, and another war will begin....is that what you want to say, brother?"
Itsuho muttered as her blank eyes looked at her brother with clenched fists as he chuckled wryly since she took his words right from his mouth.
"Did you forget what my existence means? Haven't I already been powerful enough to deter a war?!"
Itsuho gritted her teeth as she retorted, holding on to the edge.
Shisui turned his head to her as he could see what was in her mind while sighing. "You know, sister. You are indeed powerful. But you are a human too. When...."
His tone slowly started to crack as he paused.
"....Do you know what I feel when my little sister was treated like a weapon by my superiors? Do you know how I feel when you always return from battles of war like a half-living, bloody mess!! No matter how much you grow up and mature, you will always be my little sister whom I cared for more than my own life!!!"
Soon, Itsuho's eyes widened as both siblings started to crumble down.
"I never want you to go to another battlefield like that, never!!!"
Shisui's agonised voice echoed through the cliff down there as Itsuho was stunned.
"I couldn't take it anymore. Seeing my little sister becoming more and more inhuman, by making you kill your own family members!!!!"
Shisui tried to calm down as he took a deep breath to endure his own helplessness, as somehow he could sense the conflicts and dilemma that going through her head.
"Brother...."
Itsuho muttered, but no sound came out as she collapsed on the ground.
"That's why I want to stop this before it escalates to that extent. But..... When I tried to stop all this with Kotoamtsukami, Danzo stole my right eye. That man doesn't trust me at all. He is planning to go to extremes to protect the Leaf. I suspect he will come after my left eye." Shisui said grimly.
"Both of us will protect you, elder brother. They can't attack another fellow Leaf ninja that easily; besides, they won't dare to do that with me here. If he tries to do anything funny, it is the end of his power play in front of everyone!"
A glint appeared in her eyes as her usual smile, or any expression of despair, was gone, as she tried to stand up with an emotionless look that could make others chill down to the spine appeared on her face along with the ice-cold way now she looked.
"No, Itsuho. Danzo has his foundation as his backup. If something happens, they will be the ones to protect the Leaf from the shadows. Besides, you alone can't take down all of them, no matter how hard you try, from the way it spread throughout the countries.
Even if you do so, the outcome will still be war. I don't want my sister to be called a war monger again or be like that way, a half-dead, bloody mess that always haunts me in my nightmares."
Shisui shook his head as he gave her a soft smile. Despite how unsightly it was, it is clear that it is a smile from a brother who wants his sister to have nothing but the best.
"Brother...."
She muttered, still unconvinced, as she clenched her fists and bit her lip as she feel the heartache that her brother feels for her.
"So I am giving my remaining eye to Itachi before Danzo has a chance."
He showed his hand containing his bleeding eye without giving her time to react.
"You two are the only people I can trust. Itachi, Itsuho, protect the village and the Uchiha name as well," Shisui said while giving Itachi his left eye as Itachi caught it before disappearing.
"And you, Itsuho...." The girl hesitantly nodded, her lips trembling. "Use it well, and at least try to stop war before it happens. I don't ever want you to fight like that ever again," he smiled at her.
"Brother....." Itsuho felt the warmth that flowed through her face mixed with saltiness as she slowly reached him.
'I'll hide you away whether you like it or not. Once I become Hokage....i will promise there won't be wars anymore after that'
"Shisui...I," Itachi called him, worried and concerned about what is going on in his brother figure's mind, as there is some uneasiness in his tone.
"And that isn't the only thing I need to give you two." He looked at them. "I am going to give you new powers too"
There was a silence as Itsuho started to shudder in terror, understanding what he meant. "The Mangekyou Sharingan", Shisui said.
"You can't, brother/Shisui"
Itachi and Itsuho shouted in trembling voices at the same time as Itsuho took fast steps toward him.
"I am not going to last long anyway", he said as he accepted the fact. "Take it as a gift of parting"
"No! Shisui, listen to me... let's go, we need to treat you....and you said you will let me treat—"
"Itsuho!" Shisui interrupted the girl as he looked at her with a gentle smile.
"What's with the look on your faces?" Shisui laughed, stunning both of them as they looked at him incredulously. "Even like this, I can still see you two easily. Especially you, Itsuho....my beautiful little sister.
That kind of expression doesn't look good on you, though I really want to see it now... You know. Even to you, Itachi. You two must remain calm, that what you two always are, so promise...."
"I....I promise, brother" Her tightly shut lips trembled as she hugged him tightly.
"I'll hide you. You know we just need to restrain Root for a month; after that I ,will be the Hokage. With that, we would be able to stop all this coup or war or anything that comes to us!"
"Too late for that, Su-chan", Shisui bitterly smiled. "Many clansmen saw me today. If I disappeared without a trace. They will naturally suspect the higher-ups, and you won't have time to stop them. Beside I'm positive you two can do this without me here" his smile never faded. "Don't worry, it will be fine"
"I will carry on your will for the Uchiha", Itachi said.
"I'll carry on your will to see the future you can't see, brother, but there is no way I'll let you go!"
Tears started to flow as she stubbornly hugged him tighter, knowing the look he was giving her was filled with despair.