Your name is Uchiha Shisui, also known as Shunshin no Shisui. Son of Uchiha Suiho and Uchiha nee Uzumaki Korin. And the proud older brother of Uchiha Rin.
So very proud. You are considered a Prodigy. One of the Uchiha's and Konoha's finest. Second to only a hand full of people. And if you are right? One more will be added to those select few.
Rin. You named her after Obito's teammate who died protecting the village from a Bijuu going berserk in the village by killing its container. Herself. When you named her that, you were hoping it'd be in an equally great achievement will be done by her.
Without the suicide part. You give a dark chuckle at that. It pains you to even think of your sister getting hurt, let alone die. Which is why, instead of trying to figure out how to talk the Clan down from rebellion, you are writing and discarding training plans for your sister.
You'd never let your loyalty to both the Clan or Konoha. But you have found yourself a third loyalty to your sister as her nii-San. So you are preparing training schedules for her.
From what you know about what happened with the Chakra nature training, you know your sister as two things. Stubborn and a Perfectionist. You also know she has an ego and it's your duty to help stroke it.
So you are going to help with making her the best of her class by training her in something that no one else her year will be taught for awhile! Kunai and Shurikan throwing! Maybe you should also teach her the Gokakyu no Jutsu? You know your dad wants to teach her it but maybe you can talk him into speeding up the process? She has done the Leaf Burning exercise. So maybe you'll have some luck?
Anyways, you should teach her how to survive in the wild, the local plants and what's safe and not safe to eat and set up camp. If she doesn't already know half that stuff.
You snort in amusement and shake your head. Rin mystifies you at times. You swear she knows things she shouldn't know. And she's much more mature for her age than she should be. ...for the most part at least. But no matter what, she's still your sister and you love her.
So you continue your planning on what you should do for Rin's training. Maybe you should teach her about the Sharigan or give notes on what a Shinobi should know as a Genin and Chunin?
Oh! You could teach her tree walking! Your sensing skill isn't as great as Mom's or Rin's but even you can tell that Rin's Chakra has risen dramatically in the past year. It could be bad if she lets that get out of hand while neglecting Control. Which means you should write down notes on how to properly Water Walk as well so she can get started on her own if she finishes tree walking while you are on a mission. You get the feeling she won't be happy if you made her wait. Or maybe she'll figure it out herself?
You laugh at that thought. It would not surprised you if she actually managed that. God your little sister is a genius!
Honestly? You understand your father's worries. You have them too, of what if Rin graduates early. But she's strong. You are certain she'd be able to survive the woes of early graduation like you did. The stress and grief. And you will be there to help her through every step of it. But you'd prefer it if she did grow up not graduating early. To keep that innocence and prevent heartbreak. To be able to make friends her own age and have crushes…
...crushes. The world around you becomes clearer and more detailed. Oh you know if any boy breaks her heart you will personally make him pay.
Had anyone been around at the time of that thought they would hear Uchiha Shisui chuckling darkly whilst having his Mangekyo Sharigan active staring into the distance.